From the PBS Newshour website, of all places:
When Bill Clinton was president, wages for American IT workers were climbing and American students were clamoring to become computer scientists. Fifteen years later, average real IT wages are no higher. It is no coincidence that high-tech industries are now using guest workers to fill two-thirds of new IT jobs.
And now they’re asking Congress to provide them with an even greater supply of guest workers — a supply that by the IT industry’s own estimates would equal 150 percent of the expected number of new IT jobs each and every year going forward. With its passage of the comprehensive immigration reform bill, the Senate has complied, putting out a sign for IT jobs that says, “We prefer guest workers.”
The summary at the end:
Currently, U.S. colleges graduate far more scientists and engineers than find employment in those fields every year — about 200,000 more — while the IT industry fills about two-thirds of its entry-level positions with guest workers.
At the same time, IT wages have stagnated for over a decade. We cannot expect to build a strong STEM workforce and encourage domestic innovation by developing policies that undermine the quality of STEM jobs. Before asking government to intervene in labor markets by handing out more guest worker visas and green cards to STEM graduates, we should ask for audits of shortage claims and workforce impacts as a first step toward developing evidence-based policy on this issue, an issue critical to the nation’s future.