Does Trump’s immigration ban miss the greatest threat?

Counterterrorism expert says immigration ban misunderstands vetting process. More

Is the U.S. safer after President Trump's executive order temporarily prohibiting entry by citizens from seven Muslim-majority countries? Michael Leiter, former director of the United States National Counterterrorism Center, joins Judy Woodruff to discuss why he says the order misunderstands how current vetting works and how the order may instead alienate counties against the U.S.

AIR DATE 1/31/17