U.S. engaging in "intense diplomacy" in Mideast
Secretary of State Antony Blinken said Monday that the U.S. is engaged in "intense diplomacy" around the clock as fears mount over a wider war breaking out in the Middle East. Ten months into the conflict in Gaza, tensions have reached an all-time high after both a senior Hezbollah commander and Hamas' top political leader were killed last week. CBS News intelligence and national security reporter Olivia Gazis is at the State Department with more.