"I have been quite surprised by the never-ending brouhaha over this one paper."

The tumultuous Mariel refugee influx of 1980 is back in the news — this time at the core of a roiling debate about whether immigrants hurt less-educated native-born workers.

The heated arguments focus on the new work of a Cuban-born Harvard professor, George Borjas, who concludes that Mariel caused a drastic drop in pay among native-born Miami high school dropouts — the majority of whom were black.

Read more at the Miami Herald.