Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

WASHINGTON, DC - NOVEMBER 10:  U.S. President Barack Obama (R) shakes hands with President-elect Donald Trump (L) following a meeting in the Oval Office November 10, 2016 in Washington, DC. Trump is scheduled to meet with members of the Republican leadership in Congress later today on Capitol Hill. (Photo by Win McNamee/Getty Images)
WASHINGTON, DC - NOVEMBER 10:  U.S. President Barack Obama (R) shakes hands with President-elect Donald Trump (L) following a meeting in the Oval Office November 10, 2016 in Washington, DC. Trump is scheduled to meet with members of the Republican leadership in Congress later today on Capitol Hill. (Photo by Win McNamee/Getty Images)

    JUST WATCHED

    The importance of the national security transition

MUST WATCH

The importance of the national security transition

Those involved in 4 previous transitions - realized or not - on why the national security part of a presidential handover is perhaps the most important.

The importance of the national security transition

Those involved in 4 previous transitions - realized or not - on why the national security part of a presidential handover is perhaps the most important.