Comment by UncleMeat

13 days ago

The NSF buys research. PhD funding is not a gift, it is payment for a job. Buying research from citizens or noncitizens is not meaningfully different.

And is a hard work. USA buys also research partially finished in other countries for cents a dollar when they hire scientists. Harvesting the low hanging fruit without paying a dime for their first 25 years of education. A big percentage of their patents came from discoveries done by foreign researchers. Some of this patents were extremely lucrative for US in the past.