One of the things that made the US so strong in the last century was the influx of great scientists from Europe during the world wars. I know many brilliant people from other countries today who would love to become US citizens but in some cases it is difficult for them to even secure visas. Our academic culture might still be preferable to that in many other countries but if we continue to let it decay this won't be the case for long. I think that it would help solve the problem the article addresses and carry countless other benefits if we made citizenship very easy to obtain for people with intelligence that is far above average. Even some rule like any foreign national who graduated from college in the US in the top 5% of their class automatic gets the option of US citizenship would have a profoundly positive impact. It's just baffling to me that we close our borders to people who would clearly improve our country.