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
Some Team USA athletes speak out about politics at home
Skier Chris Lillis said he was "heartbroken about what's happened in the United States," while skater Amber Glenn said she "will not just be quiet."
Authorities tow car from Nancy Guthrie's home, investigate new message
Local and federal authorities said "investigators are actively inspecting the information provided in the message for its authenticity" regarding the disappearance of Nancy Guthrie.
White House removes Trump post with racist footage of Obamas hours after defending it
The footage is included in a video that promotes false claims that the 2020 presidential election was rigged against Mr. Trump.
Injured Lindsey Vonn completes final training run ahead of Olympic race
"Just because it seems impossible to you doesn't mean it's not possible," Vonn says.
Trump throws support behind Nexstar-Tegna broadcast deal he once opposed
Nexstar's acquisition of Tegna would bring together two companies with significant holdings in local broadcast media.
Brad Arnold, 3 Doors Down founder and lead singer, dies at 47
Brad Arnold, the founder and lead singer of the 3 Doors Down has died following "his courageous battle with cancer," the rock band announced Saturday on social media.
Bad Bunny lyrics to know before his Super Bowl halftime show
With Bad Bunny headlining a historic Super Bowl halftime show, we highlight some of his most impactful lyrics in Spanish and English.
Zelenskyy says U.S. gave Ukraine, Russia a deadline for agreement to end war
If the June deadline is not met, the Trump administration will likely put pressure on both sides to meet it, Zelenskyy told reporters.
U.S. speedskater Greta Myers learned of Olympic debut hours before race
U.S. speed skater Greta Myers learned about her Olympic debut in the 3000m three hours before the race was due to begin.
U.S.
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Who's performing at the Super Bowl halftime show? Here's the full list
Bad Bunny is set to take the stage at halftime for the 2026 Super Bowl. Here's who else is performing at Super Bowl 60.
Ohio man charged with threatening to kill Vance, processing child abuse files
An Ohio man has been charged with threatening to kill Vice President JD Vance while he was visiting his home state last month.
Jake Paul joins JD Vance to watch U.S. women's hockey team at Olympics
The U.S. women's hockey team eased to a 5-0 win over Finland on Saturday afternoon.
California urges avoiding wild mushrooms after deaths, liver transplants
More than three dozen cases of death cap mushroom poisonings have been reported in California since November, health officials said.
Zelenskyy says U.S. gave Ukraine, Russia a deadline for agreement to end war
If the June deadline is not met, the Trump administration will likely put pressure on both sides to meet it, Zelenskyy told reporters.
MoneyWatch
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Trump throws support behind Nexstar-Tegna broadcast deal he once opposed
Nexstar's acquisition of Tegna would bring together two companies with significant holdings in local broadcast media.
Exclusive
Lutnick and Epstein were in business together, Epstein files show
Though the commerce secretary has called his interactions with Epstein as "limited," the two were in business together four years after Epstein's 2008 guilty plea.
Dow crosses 50K for first time as stocks enjoy best day since May 2025
Resurgent technology stocks drove the rebound after a volatile week, while bitcoin also recouped losses.
Purported Nancy Guthrie ransom note demanded bitcoin. Could it be tracked?
Cryptocurrency transactions are often thought to be anonymous and untraceable. That's a misconception, experts tell CBS News.
Prediction markets soar ahead of the Super Bowl
Emboldened by loosened restrictions from federal regulators, prediction markets look to cash in on Super Bowl Sunday.
Politics
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Trump throws support behind Nexstar-Tegna broadcast deal he once opposed
Nexstar's acquisition of Tegna would bring together two companies with significant holdings in local broadcast media.
Some Team USA athletes speak out about politics at home
Skier Chris Lillis said he was "heartbroken about what's happened in the United States," while skater Amber Glenn said she "will not just be quiet."
Zelenskyy says U.S. gave Ukraine, Russia a deadline for agreement to end war
If the June deadline is not met, the Trump administration will likely put pressure on both sides to meet it, Zelenskyy told reporters.
Appeals court endorses Trump policy of denying bond hearings to many ICE detainees
A federal appeals court on Friday endorsed the Trump administration's policy of holding broad groups of immigration detainees without access to bond hearings, a major legal victory for President Trump.
Pentagon says it's cutting ties with "woke" Harvard
The Pentagon says it will cut ties with Harvard University, ending graduate-level military training, fellowship and certificate programs.
HealthWatch
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Her deadly diagnosis only had 1 warning sign. Here's how she survived.
Becca Valle, then 37, enrolled in a cutting-edge clinical trial after surgery removed an aggressive tumor from her brain.
California urges avoiding wild mushrooms after deaths, liver transplants
More than three dozen cases of death cap mushroom poisonings have been reported in California since November, health officials said.
See the 43 drugs available on new discounted drug site TrumpRx
Here's what to know about TrumpRx, including how it works, who can use it, and how much money it can save.
White House launches TrumpRx discounted drug site
The Trump administration launched its new TrumpRx direct-to-consumer prescription drug listing site late Thursday, part of a push to offer medication at steep discounts.
Officials warn against drinking raw milk after baby dies from listeria
The New Mexico Department of Health said officials believe the baby contracted listeria after their mother drank raw milk during pregnancy.
World
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Ilia Malinin stunned by Yuma Kagiyama in Olympic figure skating short program
Ilia Malinin was second with 98.00 and was topped by Japan's Yuma Kagiyama, who scored 108.67 points for the Olympic figure skating team event short program Saturday night.
Jake Paul joins JD Vance to watch U.S. women's hockey team at Olympics
The U.S. women's hockey team eased to a 5-0 win over Finland on Saturday afternoon.
Italy nabs first gold medal of Milano Cortina Olympics in speedskating upset
Francesca Lollobrigida set a new Olympic record of 3 minutes, 54.28 seconds, shaving more than two-and-a-half seconds off the mark set by Dutch legend Irene Schouten four years earlier in Beijing.
4 suspects arrested after bombing at Pakistan mosque leaves 31 dead
Friday's attack was the deadliest suicide bombing in Islamabad in nearly 20 years.
U.S. speedskater Greta Myers learned of Olympic debut hours before race
U.S. speed skater Greta Myers learned about her Olympic debut in the 3000m three hours before the race was due to begin.
Entertainment
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Brad Arnold, 3 Doors Down founder and lead singer, dies at 47
Brad Arnold, the founder and lead singer of the 3 Doors Down has died following "his courageous battle with cancer," the rock band announced Saturday on social media.
Who's performing at the Super Bowl halftime show? Here's the full list
Bad Bunny is set to take the stage at halftime for the 2026 Super Bowl. Here's who else is performing at Super Bowl 60.
Twisted Sister cancels reunion shows as frontman Dee Snider resigns
Lead singer and frontman Dee Snider said he suffers from degenerative arthritis and has had several surgeries over the years.
Best books for Valentine's Day
Sarah Gelman, editorial director at Amazon Books, joins "CBS Saturday Morning" to recommend some of the best books to read around Valentine's Day.
Super Bowl food that's bound to go viral
Super Bowl chefs spend an entire year developing the menu for the big game, and "CBS Saturday Morning" gets a sneak peek at some of the mouth-watering options.
Technology
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Super Bowl fans warned to leave drones at home amid flight ban
The FAA says it is collaborating with the FBI to detect, track and assess unauthorized drone activity at the Super Bowl.
Ukrainian military drone simulator adapted for video gamers in world first
Gamers across the world can now recreate drone strikes in Ukraine from the comfort of their own home, with this newly released game.
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.
How will AI transform the workforce?
CBS News business analyst Jill Schlesinger talks about how companies are using artificial intelligence, the discussion around the technology and how it's impacting the workforce.
Tesla, Waymo leaders defend product safety
Executives from Waymo and Tesla defended their self-driving vehicle technology in testimony before the Senate Commerce Committee on Wednesday. CBS News' Kris Van Cleave reports and Ian Krietzberg, an AI correspondent at the digital media company Puck, has more.
Science
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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.
Mysterious dark matter seen in new map of distant galaxies
Dark matter doesn't absorb or give off light so scientists can't study it directly. But they can observe how its gravity warps and bends the star stuff around it.
Cow develops technique to scratch herself
"CBS Saturday Morning" learns more about Veronika, the clever cow who figured out multiple ways to scratch herself with a broom. It was the first time a cow was seen using a tool.
Almanac: January 18
"Sunday Morning" looks back at historical events on this date.
Fossils found at Dinosaur National Monument, first excavation in 100 years
The Dinosaur National Monument, which is located on the border between Colorado and Utah, was last excavated in 1924.
Crime
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Crime
Latest in Nancy Guthrie disappearance
Authorities said Friday they were inspecting an apparent new message relating to the disappearance of "Today" host Savannah Guthrie's mom, Nancy, after the family reported her missing from her home on Sunday.
Luigi Mangione has outburst after hearing
Luigi Mangione had an outburst after a hearing on Friday in which the judge announced that his New York State trial will begin on June 8. CBS News legal reporter Katrina Kaufman is following the case.
Authorities tow car from Nancy Guthrie's home, investigate new message
Local and federal authorities said "investigators are actively inspecting the information provided in the message for its authenticity" regarding the disappearance of Nancy Guthrie.
Investigators vetting Guthrie ransom note
Friday marked six days since Nancy Guthrie's apparent abduction, and Guthrie's three children have been posting on social media hoping to reach whoever may have taken her. CBS News' Andres Gutierrez reports and former FBI counterintelligence operative Eric O'Neill has more.
Mangione claims double jeopardy
Luigi Mangione had an outburst in a New York courtroom on Friday after a judge scheduled his state trial to begin before his federal case. The UnitedHealthCare CEO murder suspect claimed "this is the same trial twice" and called it "double jeopardy." CBS News' Katrina Kaufman has more.
Space
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Space
What led NASA to delay Artemis II launch
NASA's first crewed moon mission in more than 50 years has been delayed until March at the earliest. During a routine dress rehearsal of the launch, persistent liquid hydrogen leaks were discovered in the Artemis II rocket. CBS News space consultant Bill Harwood breaks it down.
NASA hopes to fix Artemis II moon rocket leak with on-pad repair
NASA plans to test the planned leak repair with a second dress rehearsal fueling test later this month.
NASA delays Artemis II launch
NASA delayed the Artemis II moon rocket launch after a hydrogen leak was found during a wet dress rehearsal, the agency announced Tuesday. CBS News senior space consultant Bill Harwood has the latest.
NASA begins mission to map the boundaries of our heliosphere
A NASA mission is underway to map the heliosphere, which is a huge protective bubble around the solar system that was created by the sun.
NASA moon launch off until March due to issues during tests
NASA says it can't try until March at the earliest to send a crewed spacecraft on a flight around the moon and back, due to hydrogen leaks during testing of the Artemis II rocket.
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
Winter Olympics kick off with opening cermony
The Milano Cortina Winter Olympics marked its official start on Friday with an opening ceremony that included the traditional Parade of Nations and performances from Mariah Carey and Andrea Bocelli. "CBS Saturday Morning" goes inside the event.
Three sisters chase Olympic dream
Sam, Lauren and Alli Macuga are competitive skiers across different disciplines who were hoping to represent Team USA at Milano Cortina. Lauren, who was a top contender in alpine, suffered an ACL injury in November that ended her season -- but she explains why the world hasn't seen the last of the Macuga sisters.
Best books for Valentine's Day
Sarah Gelman, editorial director at Amazon Books, joins "CBS Saturday Morning" to recommend some of the best books to read around Valentine's Day.
Super Bowl food that's bound to go viral
Super Bowl chefs spend an entire year developing the menu for the big game, and "CBS Saturday Morning" gets a sneak peek at some of the mouth-watering options.
The Dish: Noor Murad
Noor Murad's latest cookbook is a love letter to the Middle Eastern flavors she is known for using in her dishes.