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    Rep. Dingell on guns: Forefathers could never believe the danger we live in

    02:43
  • Chris Hayes: U.S. life expectancy is declining. Biden should act. 

    06:48
  • Rep. Boebert rails against ATF, 'gun-free zones' and urges Americans to buy more guns

    10:19
  • America's gun culture

    06:10
  • Florida activist: DeSantis-led GOP wants to make guns easier to access than kids' Rosa Parks book

    12:00
  • Deadly start to 2023 as mass shootings pervade nation

    02:10
  • Secret Service releases report on mass attacks in public spaces

    04:35
  • Mayor Adams: Unfair for cities to carry the weight of nation's border crisis

    07:10
  • America's numbness to gun violence

    07:24
  • Officials say Half Moon Bay mass shooting evidence points to 'workplace violence'

    03:27
  • Sen. Booker to GOP on debt limit: Govern or get out of the way

    09:02
  • Joe: Why do Republicans keep blocking sensible background checks?

    11:53
  • 18 people dead in separate California shootings

    05:58
  • At least seven dead in shootings in Half Moon Bay, California

    02:10
  • NBC News Exclusive: Surveillance video shows the moment a hero disarmed Monterey Park gunman

    04:47
  • Eleventh victim dies in wake of Monterey Park shooting

    03:38
  • CA State Sen. on Monterey Park Shooting: 'A lot of trauma, a lot of guilt'

    04:09
  • Asian American activist calls for a 'true conversation' about domestic violence after Monterey Park shooting

    03:13
  • Rep. Judy Chu: We have to close 'loopholes’ that allow people to 'evade' universal background checks

    04:50
  • Katherine Schweit: 'We hardly ever have a shooter' in Monterey Park shooting suspect age range

    04:26

Pentagon sued over failure to report convictions to gun database

03:42

San Francisco, New York and Philadelphia are taking the Department of Defense to court, arguing that many service members who are disqualified from gun ownership weren't reported to the national background check system. NBC’s Hans Nichols reports.