Walk This Way

Over 1,300 miles remain for a caravan of 7,000 Honduran migrants headed to the U.S. by foot. How many will peel off in Mexico, and what happens if and when they reach the U.S. border in several months? Andrew Selee, president of the Migration Policy Institute, explains what’s going on, what Mexico and the U.S. can do, and why it is likely to happen again.