In New York, like in lots of cities, you can call 3-1-1 for help with city services, but there's lots of things that people call in for that operators don't have answers for. And so they improvise.

Seth Freed Wessler reports on people going the opposite direction over the US/Mexico border. Each year hundreds of thousands of people are deported from the US to Mexico — tens of thousands more choose to leave on their own — and lots of them make the journey after years and years living in the states.