"The Heritage Foundation report on the costs of immigration
reform co-authored by controversial scholar Jason Richwine has been widely
debunked, and Richwine himself has resigned from Heritage in the wake of
revelations about his history of arguing that blacks and Latinos are dumber than
Jews and Irish people. But Richwine's study was even worse than previously
thought, according to a new Scholars Strategy Network brief (PDF) by Richard
Alba, a sociology professor at the Graduate Center of the City University of New
York who studies immigration and assimilation."