Biden enters perilous final hours of Afghanistan mission

The remaining U.S. forces in Afghanistan are set to leave the country on Tuesday, marking an end to a nearly 20 year military engagement.

But the exit will not be a clean break for the Biden administration, which still must grapple with whether to continue evacuation missions for Americans and Afghan allies left behind, as well as the fallout from a deadly ISIS attack last week that killed more than a dozen U.S. service members.