“Part of the reason pay fell is that these men, mostly from predominantly Islamic countries such as Pakistan, Saudi Arabia and Algeria, found fewer opportunities and had to find work in different industries that paid less than the jobs they used to be employed in after 9/11, said the study’s co-author, Robert Kaestner, a University of Illinois at Chicago economics professor.”

However, there has been an income recovery reported beginning in 2005.

From The Chicago Sun Times