The USG can't put cameras in my house and promise not to look at the video unless I'm a foreigner. That's what this amounts to. Why anyone would defend this is beyond me.
It can't put cameras in your house without a warrant if you live in the US period. If you're a foreigner living outside the US, you're fair game to the US. This is true for any country, not just the US. How anybody could fail to understand this is beyond me.