The Monitor, this link; with STEM being an acronym for granting 55,000 visas a year to foreign-born graduates of American
universities with advanced degrees in science, technology, engineering,
and math (hence, "STEM"). It is in our best interest to brain-drain the foreign born non-citizen PhD recipients here, where corporations often cannot find enough suitably trained citizens to fit needs, and have them draw salaries stateside with the multiplier effect in our economy, vs. sending them home to where the multinational firms pay the salaries in, say India or China, with the benefit of the multiplier effect shipped overseas.
But with that as but one aspect of immigration policy, the Monitor frames a debate. Read it if interested.