She is a professor at Harvard's Kennedy School, a former assistant secretary of homeland security in the Obama administration and founder of Kayyem Solutions, a security consulting firm. Kayyem was a Hillary Clinton supporter who advised the campaign on homeland security issues. Transitions are generally taken seriously, because anything can happen on Day One. In short, if the lead-up to Day One is any hint, as a nation we must prepare for a disturbing Day After. JUST WATCHED Fear, anger over potential 'Muslim registry' Replay More Videos ... MUST WATCH Fear, anger over potential 'Muslim registry' 03:04

Source: CNN November 20, 2016 22:23 UTC