The New York Times notes in Brazilians Giving Up Their American Dream, [by Nina Bernstein and Elizabeth Dwoskin, December 4, 2007] that

"In Massachusetts, says Fausto da Rocha, the founder of the Boston-area Brazilian Immigrant Center, his compatriots—many here illegally—are leaving by the thousands, some after losing homes in the subprime mortgage crisis."

Here's VDARE.com's take on the issue from almost 4 years ago:The Mortgage Monsters Meet The Immigration Invasion. They Like Each Other., March 31, 2004