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    Search underway for Tennessee woman last seen on road trip

    01:44
  • Florida police arrest 2 in connection with Hollywood beach shooting

    02:20
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    03:08
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    03:11
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    03:22
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    02:46
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    07:41
  • Biden ‘didn’t come off clearly to the American people’ on debt ceiling, Democratic congressman says

    08:46
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    07:59
  • Biden and McCarthy reach deal to raise the debt ceiling

    02:26
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How the Department of Homeland Security has grown since post-9/11 creation

04:48

The Department of Homeland Security, created by then President George W. Bush in the wake of 9/11 to tackle threats of international terrorism, has grown into one of the largest federal agencies in just under 20 years. NBC News’ Julia Ainsley breaks down how the agency has grown since its creation and the threats it is now facing.