The once red-hot issue of illegal immigration has cooled considerably in recent months, in large part because of studies like one from the Pew Hispanic Center that said the flood of people entering the U.S. from across the Mexican border has slowed, and that the number actually returning to Mexico from the U.S. has increased, reversing a decades-long trend.

But federal law enforcement agents on the border are skeptical that the illegal immigrant tide is slowing. And new information from the U.S. financial sector shows that more money is flowing from American cities to Mexico in the form of remittances from immigrants than last year.