I’ve always been uncomfortable with all those H-1B visas

Harvard economist George Borjas has documented that an influx of
Ph.D.s from abroad reduces incomes of all comparable doctorates.
Although some people argue that advanced education assures good career
prospects, “the supply-demand textbook model is correct after all,”
Borjas says. It turns out to work as powerfully on molecular biologists
and computer programmers as on gardeners and baby sitters.

The director of postdoctoral affairs at one stellar university, who
requested anonymity to avoid career repercussions, puts it more acidly.
The main difference between postdocs and migrant agricultural laborers,
he jokes, is that the Ph.D.s don’t pick fruit. [my emphasis]

Tip from the Instapundit.