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    Extradition of Julian Assange to the U.S. approved by British government

    02:37
  • Plot by ISIS operative to assassinate former Pres. George W. Bush foiled by law enforcement

    02:01
  • Justice Dept. announces criminal charges against Chinese government over efforts to intimidate

    02:52
  • CIA director: 'Putin has no endgame' in Ukraine as intel shows up to 4,000 Russian soldiers killed 

    03:01
  • White House: Putin 'improvising' Ukraine strategy, was not prepared for U.S. intel

    01:50
  • Russian military exercises in Belarus ‘will continue indefinitely’

    03:00
  • Richard Engel: War 'may be starting right now'

    02:42
  • The lights are blinking red all over Europe

    01:22
  • CIA delivers warning to Russia of consequences over 'Havana Syndrome'

    03:28
  • Former CIA officer says traditional spying is 'dead' due to technology, internet

    04:41
  • Biden announces new defense agreement with U.K., Australia

    03:37
  • How September 11 changed security in America

    01:45
  • Honoring the 13 U.S. service members who lost their lives in the Kabul airport terror attack

    00:23
  • McMaster: Afghanistan 'a one-year war, fought 20 times over'

    01:20
  • Blinken: 'Deeply sorry' to parents of fallen soldiers of Kabul attack

    01:29
  • Blinken: U.S. 'not likely' to have diplomatic presence in Afghanistan after Sept. 1

    00:46
  • MTP Compressed: White House defends chaotic Afghanistan withdrawal

    02:27
  • Cheney: ‘No question that there were mistakes’ in Afghanistan, but U.S. can’t let terrorists hide

    00:53
  • Jake Sullivan: ‘Not going to sugarcoat’ the turbulence in Kabul

    01:31
  • Richard Engel: 'Total panic in Kabul'

    02:32

What it’s like for a city on lockdown

02:30

On a typical Friday night in Boston, the streets are teeming with people and traffic but instead Bostonians were hunkered down yesterday, heeding the advice of the authorities to stay inside. NBC’s Katy Tur reports.