Maybe that's how US is going to have enough STEM talents -- just like WWI and WWII, take as many talents as possible when the other parts of the world are in shit.
However, it's safe to assume cyber attacks will hit Arizona. It's not unreasonable to assume crazy people will attack critical infrastructure, and we'll have to deal with the social fallout from that.
In the mean time, the situation in EU and Asia is going to deteriorate and North America can absorb more talents as it sees fit. The last two times it was mostly EU but this time Asia might be the new talent pool we can draw from.