Why do mass shooters choose the AR-15 style rifle?
Some of the worst massacres in recent memory have had something in common: the AR-15 style rifle. Scott Pelley reports on why the high-velocity rounds used in the gun makes it so deadly
AR-15 Rifle
Learning how to "Stop the Bleed"
Ballistics tests show how lethal a wound from an AR-15 style rifle can be. Now there's a campaign to teach civilians how to be first responders in mass shootings
America today: training kids to be first responders
"Stop the Bleed" is a campaign to teach civilians — including school-age kids — to come to the rescue of people injured in accidents and shootings
A judge said this man couldn't post blueprints for 3D-printed guns. He started doing it anyway
Cody Wilson said he's already gotten nearly 400 orders
Man behind 3D-printed gun blueprints says "the debate is over"
Founder of Defense Distributed is speaking out, as a group of eight attorneys general sued to stop the company from releasing blueprints online
States sue Trump administration to try to block 3D-printed guns
The blueprints are set to be released Wednesday, including for AR-15 style assault rifles
Girl wears gun in viral graduation photos
A Kent State graduate wore a gun holster around her body and a picture of a gun on her graduation cap in viral photos
Will gun sellers heed fervent call from Dick's Sporting Goods CEO?
One gun merchant says renewed national focus on gun control is boosting sales of assault-style rifles
Church hosts blessing ceremony featuring AR-15s
World Peace and Unification Sanctuary in Pennsylvania believes the AR-15 symbolizes the "rod of iron" in the biblical book of Revelation
Heavy security as Florida shooting survivors head back to class
Heavily armed police presence designed to make community feel secure in wake of mass shooting
Elementary school to close for church ceremony featuring AR-15s
Church officials say that weapons will be unloaded, secured with zip ties and checked at the door
AP: Wash. law enforcement sell seized assault weapons
Sheriff's offices and police departments across the state have sold dozens of AR-15s, AK-47s and other assault weapons since 2010, an AP investigation found
Poll: Support for stricter gun laws rises; divisions on arming teachers
Backing for better background checks crosses party lines, but nation splits on banning AR-15, CBS News poll shows
Bump stock prices soar ahead of potential federal ban
Renewed talk of outlawing the accessories that let semi-automatic weapons fire like an automatic is behind the surge
Deputies to carry rifles on school campuses in Fla. county where shooting occurred
Some deputies would be carrying AR-15's, but they are single shot rifles, according to Sheriff Scott Israel
Trump hosting "listening session" amid pressure to act on shootings
The White House session will take place with students, parents and teachers from Parkland, Newtown and Columbine communities
White House voices support for background check bill after Florida shooting
The bill was introduced in November after 26 people were shot and killed in a Texas church
Youth baseball team to hold AR-15 raffle despite outcry
The team is moving ahead with the raffle, even though it's facing criticism in the wake of the deadly Florida school shooting
Cops: Man who impersonated officer at jail had AR-15 in car
Police in Illinois say Justin Heffer was wearing a bulletproof vest and had a BB gun when he walked into the jail
Heroic teacher: "There's no point to somebody having an AR-15"
History teacher and gun owner Ernie Rospierski, who helped shepherd his students to safety, challenges anyone wanting to own an assault weapon
Faith Salie on threat of mass shootings: Do something
Says America's founding fathers who crafted our Constitution would want us to prevent America's children from being massacred
Fla. school shooting survivor David Hogg says: Speak out
Says interest groups and politicians who block changes to gun laws will not listen if the public doesn't demand it
"If you are a law-abiding citizen, then we can sell you that gun": How easy is it to buy an AR-15?
A gun store owner a mile from Marjory Stoneman Douglas High School said the whole process can take 15 minutes if you have a concealed carry license
Women sharpshooters explain their love for the AR-15 rifle
The AR-15 is no ordinary gun -- it's a descendant of the M16 designed for U.S. soldiers in Vietnam
Man caught at traffic stop with automatic weapons, 900 rounds
Federal agents trying to figure out why man caught speeding in Tennessee had weapons cache, survival equipment
Exclusive
U.S. Air Force VIP fleet being repainted in Trump's preferred palette, sources say
The Kennedy-era robin's egg blue that's currently on the planes is being updated to navy, red and gold.
Mikaela Shiffrin wins gold in women's slalom, breaking Olympic drought
Mikaela Shiffrin, the most decorated skier of all time, last won a medal at the 2018 Winter Olympics in PyeongChang.
How "signal sniffer" technology is being used in the search for Nancy Guthrie
The "signal sniffer" being used in the Nancy Guthrie investigation was mounted on a helicopter on Monday.
9 skiers missing near California's Lake Tahoe after avalanche
A group of 15 backcountry skiers was reportedly involved in the incident, the sheriff's office says. Nine remain unaccounted for.
FBI, St. Paul police probing ICE arrest that resulted in skull fractures
Minnesota and federal authorities are investigating claims that immigration officers shattered a Mexican man's skull while taking him into custody last month.
Judge blocks deportation of Palestinian activist who led protests at Columbia
An immigration judge has dismissed the Trump administration's deportation case against Mohsen Mahdawi, a Palestinian graduate student and Columbia protest leader.
French far-left party linked to activist's killing reports bomb threat
The far-left France Unbowed party says it evacuated its Paris office due to a bomb threat as 2 more people were detained over the killing of a far-right activist.
Stephen Colbert slams CBS again amid controversy over Talarico interview
"The Late Show" host Stephen Colbert slammed CBS again on Tuesday night after the network issued a statement about his interview with Texas Democrat James Talarico.
Epstein survivor tells CBS News how she was trafficked, and assaulted
Juliette Bryant says not long after meeting Jeffrey Epstein, he assaulted her, and she realized, "this is not a modeling opportunity, I've been kidnapped."
U.S.
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Democratic lawmakers ask watchdogs to probe ex-lobbyists serving in Trump admin.
Four congressional Democrats are asking inspectors general to probe whether ex-lobbyists in the administration broke ethics rules to benefit former clients.
Stephen Colbert slams CBS again amid controversy over Talarico interview
"The Late Show" host Stephen Colbert slammed CBS again on Tuesday night after the network issued a statement about his interview with Texas Democrat James Talarico.
U.S. military strikes 3 more alleged drug boats, killing 11 people
The series of strikes brought the death toll to at least 145 people since the administration began targeting the small vessels since September.
How "signal sniffer" technology is being used in the search for Nancy Guthrie
The "signal sniffer" being used in the Nancy Guthrie investigation was mounted on a helicopter on Monday.
FBI, St. Paul police probing ICE arrest that resulted in skull fractures
Minnesota and federal authorities are investigating claims that immigration officers shattered a Mexican man's skull while taking him into custody last month.
MoneyWatch
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Tesla robotaxis involved in 14 crashes since launching in Austin, Texas
Tesla CEO Elon Musk has said the electric vehicle maker plans this year to greatly expand its self-driving taxi business.
FDA investigating Salmonella outbreak connected to moringa powder
Rosabella-brand moringa capsules could be linked to Salmonella cases in seven U.S. states, health officials said.
20% of U.S. jobs are highly vulnerable to automation, economists say
More than half of jobs in manufacturing and transportation could be automated over the next 20 years, according to Oxford Economics.
Bayer proposes $7.2 billion settlement to resolve weedkiller cases
Germany's Bayer has faced thousands of lawsuits after buying Roundup maker Monsanto in 2018 for $63 billion.
Warner Bros. Discovery restarts takeover talks with Paramount Skydance
Warner Bros. Discovery said that Paramount Skydance is considering enhancing its buyout offer for the entertainment company.
Politics
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Democratic lawmakers ask watchdogs to probe ex-lobbyists serving in Trump admin.
Four congressional Democrats are asking inspectors general to probe whether ex-lobbyists in the administration broke ethics rules to benefit former clients.
Stephen Colbert slams CBS again amid controversy over Talarico interview
"The Late Show" host Stephen Colbert slammed CBS again on Tuesday night after the network issued a statement about his interview with Texas Democrat James Talarico.
U.S. military strikes 3 more alleged drug boats, killing 11 people
The series of strikes brought the death toll to at least 145 people since the administration began targeting the small vessels since September.
Judge blocks deportation of Palestinian activist who led protests at Columbia
An immigration judge has dismissed the Trump administration's deportation case against Mohsen Mahdawi, a Palestinian graduate student and Columbia protest leader.
Trump blames D.C., Maryland and Virginia for massive Potomac River sewage spill
President Trump and Maryland Gov. Wes Moore are feuding over who's responsible for addressing one of the largest sewage spills in U.S. history.
HealthWatch
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FDA investigating Salmonella outbreak connected to moringa powder
Rosabella-brand moringa capsules could be linked to Salmonella cases in seven U.S. states, health officials said.
Measles cases at university in Florida soar to nearly 60
Twenty one states in the U.S. have confirmed cases of measles.
Can TrumpRx help you save money on drugs? Here's what experts say.
The Trump administration's new discounted drug platform, TrumpRx, isn't a game-changer for consumers, health care experts said.
Moderna says FDA refuses its application for new mRNA flu vaccine
The Food and Drug Administration is refusing to consider Moderna's application for a new flu vaccine made with mRNA technology, the company said.
What to know about a new study on coffee, tea and dementia risk
CBS News medical contributor Dr. Céline Gounder said the results of the study on coffee drinkers having lower risk of dementia should be taken "with a massive grain of salt."
World
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Mikaela Shiffrin wins gold in women's slalom, breaking Olympic drought
Mikaela Shiffrin, the most decorated skier of all time, last won a medal at the 2018 Winter Olympics in PyeongChang.
Team USA curler defends Canadian player accused of cheating
Team USA curler Korey Dropkin defends Canadian player Marc Kennedy amid allegations of an Olympic rule breach on the ice.
Naval shipwreck emerges after being buried underwater for 400 years
A program dubbed "the Lost Navy" is underway to identify the large number of Swedish naval shipwrecks lying on the bottom of the Baltic.
French far-left party linked to activist's killing reports bomb threat
The far-left France Unbowed party says it evacuated its Paris office due to a bomb threat as 2 more people were detained over the killing of a far-right activist.
Lindsey Vonn's Olympic crash rekindles concern over ski bindings design
Lindsey Vonn's devastating injury when her skis didn't come off has put a spotlight on bindings, which hold boots to skis and are some of the oldest technology in the sport.
Entertainment
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Stephen Colbert slams CBS again amid controversy over Talarico interview
"The Late Show" host Stephen Colbert slammed CBS again on Tuesday night after the network issued a statement about his interview with Texas Democrat James Talarico.
Stephen Colbert slams CBS, says network blocked James Talarico interview
"The Late Show" host Stephen Colbert criticized CBS on Monday night, saying the network blocked his interview with U.S. Senate hopeful James Talarico from airing.
Anderson Cooper to depart "60 Minutes" at end of season
Anderson Cooper will report multiple stories for "60 Minutes" before the end of the television season in May.
Oscar-winning actor Robert Duvall dies at 95
Oscar-winning actor Robert Duvall died on Sunday at the age of 95. Duvall starred in classics like "The Godfather" and "Apocalypse Now." Vladimir Duthiers looks back at his career.
Warner Bros. Discovery restarts takeover talks with Paramount Skydance
Warner Bros. Discovery said that Paramount Skydance is considering enhancing its buyout offer for the entertainment company.
Technology
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Technology
"Signal sniffer" inventor on Nancy Guthrie
Investigators in Nancy Guthrie's disappearance are using a device called a "signal sniffer" to try to detect transmissions from her pacemaker. David Kennedy, former NSA hacker and inventor of the pacemaker signal detector, joins CBS News to discuss his work with law enforcement in the search.
Potential impacts of AI
Matt Shumer joins "CBS Mornings" to discuss his now viral article, "Something Big Is Happening." He writes that AI's "capability for massive disruption could be here by the end of this year." Shumer explains why he wrote the article, and his message to concerned readers.
How AI powered robots are helping small farms
From labor shortages to environmental impacts, farmers are looking to AI to help revolutionize the agriculture industry. One California startup, Farm-ng, is tapping into the power of AI and robotics to perform a wide range of tasks, including seeding, weeding and harvesting.
Viral essay urges people to prepare for AI
If you've been on social media this week, you've likely seen an ominous warning about artificial intelligence in your feed: "Something big is happening." An essay from the CEO of an AI company, Matt Shumer, likens the current moment to February 2020, right before the start of COVID. Nate Soares, co-author of "If Anyone Builds It, Everyone Dies," joins to discuss.
Amazon ends Flock partnership after backlash over Super Bowl ad
Amazon's Ring unit touted a "search party" service in its Super Bowl ad, but one critic called the app a "surveillance nightmare."
Science
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In a first, shark seen on camera in Antarctica waters, surprising researchers
A large shark was caught on camera for the first time in Antarctica's waters, surprising researchers. "There's a general rule of thumb that you don't get sharks in Antarctica," one said.
How Washington's crossing of the Delaware presaged a changing world
On the evening of Christmas 1776, Gen. George Washington surprised the King's forces by leading the Continental Army in a surprise crossing of a near-frozen Delaware River - a watershed military maneuver that dramatized a changing America, and a changing climate.
These United States: George Washington and climate change
On the evening of Christmas 1776, Gen. George Washington surprised the King's forces by leading the Continental Army in an unanticipated crossing of a near-frozen Delaware River. Environmental correspondent David Schechter looks at how Washington's watershed military maneuver dramatized both a changing America, and a changing climate.
Impact of climate change on Winter Olympics
The Winter Olympics in Milan need artificial snow due to climate change and warmer weather. Athletes say man-made snow makes terrain more difficult and unpredictable. Rob Marciano reports on its impact.
Scientists "quite surprised" to find one polar bear population thriving
After decades monitoring polar bears in Norway's far north, researchers say the animals have proven incredibly adaptable, but there are no guarantees for the future.
Crime
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Crime
Focus on evidence in Nancy Guthrie search
Officials are still searching for a DNA match from a sample collected after a pair of gloves was found near Nancy Guthrie's home. This comes as the FBI probes gun purchases in the Tucson, Arizona, area. CBS News' Jonathan Vigliotti reports.
New Mexico probing ranch linked to Epstein
New Mexico lawmakers are investigating a ranch that convicted sex offender Jeffrey Epstein purchased in 1993 after the latest batch of documents released by the Justice Department revealed allegations of potential crimes that occurred on the property. CBS News' Ian Lee reports.
Nancy Guthrie case DNA probe
Investigators in the Nancy Guthrie kidnapping case are attempting to match a DNA profile recovered from a pair of gloves found near her home. CBS News' Jarred Hill reports.
How "signal sniffer" technology is being used in the search for Nancy Guthrie
The "signal sniffer" being used in the Nancy Guthrie investigation was mounted on a helicopter on Monday.
Probe into New Mexico ranch Epstein once owned
State lawmakers in New Mexico have launched an investigation into a ranch once owned by convicted sex offender Jeffrey Epstein. CBS News correspondent Ian Lee reports.
Space
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Fresh crew arrives at International Space Station to boost numbers back to 7
The Crew 12 docking came one month after a previous crew had to return to Earth early due to a medical issue.
SpaceX launches crew to ISS
NASA and SpaceX launched a new mission to the International Space Station with four crew members on board to replace the team that returned last month due to a medical issue with one member. Mark Strassmann has more.
SpaceX launches space station crew on 8-month mission
The two-woman, two-man crew is replacing four other station fliers who came home early last month due to a medical issue one was having.
NASA, SpaceX mission prepares for launch
NASA and SpaceX say they have completed their final reviews and are ready to launch a crewed mission to the International Space Station on Friday. Retired NASA astronaut Leroy Chiao joins "The Daily Report" to discuss.
ULA rocket has booster problem while launching classified Space Force payloads
A United Launch Alliance Vulcan rocket carrying classified Space Force payloads suffered a booster problem but apparently made an otherwise "nominal" ascent to space, the company said.
Latest Galleries
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Notable Deaths in 2026
A look back at the esteemed personalities who've left us this year, who'd touched us with their innovation, creativity and humanity.
Evidence in the Barbara Kendhammer case
Does the evidence show a cover-up, or was Todd Kendhammer wrongfully convicted for the murder of his wife?
The life & near death of prizefighter Christy Salters-Martin
Christy Salters-Martin dominated in the boxing ring but faced her toughest challenger at home.
Timeline: The disappearance of George Smith
Family seeks answers in death of newlywed who disappeared in 2005 while on Mediterranean honeymoon cruise.
Who is Alix Tichelman?
Meet the tattooed beauty charged in the death of Google executive Forrest Hayes.
Latest CBS News Videos
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Latest CBS News Videos
Olympian on curling cheating allegations
U.S. curler Korey Dropkin, who won a silver medal at the 2026 Winter Olympics, defended Canadian curler Marc Kennedy amid cheating accusations at the Games, saying he's "one of the greatest curlers of all time and plays by the rules." Dropkin also opened up about sharing his love for the sport and its popularity during the Winter Games.
Eye Opener: Skiers missing after avalanche
A search for survivors is underway after skiers were trapped by an avalanche near Lake Tahoe, California. Plus, dangerous wildfires are burning across multiple states. All that and all that matters in today's Eye Opener.
U.S. figure skaters compete in short program
Americans added two silver medals to their count Tuesday — in big air and the men's team speedskating final. Meanwhile, the U.S. women figure skaters competed in the short program, looking to claim an individual medal. Alysa Liu finished in third ahead of Thursday's free skate event.
Students at trial recall deadly shooting
The prosecution in the trial of Colin Gray, whose son is accused of opening fire at Apalachee High School in 2024, called 23 witnesses on Tuesday - many of them children who survived the shooting. The students testified they are still suffering, both physically and mentally, after the deadly shooting. Skyler Henry reports.
What to know about the Texas Senate primaries
Spending for the Texas Senate primaries broke a record, according to new data by AdImpact. CBS News' Fin Gomez has more on the highly anticipated race.