Can the US taxpayer tolerate (financially, politically) what it will take to get the best and brightest to do AI work for .gov and .mil instead of adtech? All you have to do is look at defense lab salaries to see there is going to be a problem keeping talent around. Some people are certainly willing to take a pay cut to work on national defense, but probably not enough. Perhaps especially not the kind of person who went into adtech in the first place.