that got away. agent dan hernandez. >> we patrol over the size of new jersey. >> reporter: tucson is the second busiest sector in the country. constantly spied on by human traffickers just over the way. >> as we are talking right now, there are two scouts up on the ridge. >> reporter: the president's immigration flip-flop doesn't help. >> u.s. customs and border protection took steps immediately. >> reporter: separated families are being reunited. >> a family would not be prosecuted unless one of them had a criminal record but would