From high risk countries, full of extremists and other dangerous people like the US? Seems pretty reasonable.
People will let others take from them, piece by piece, until everything is gone. Even if you have nothing to hide, do we not have a right to privacy? We should be asking why they need it.
It's been normal for Europeans entering the US for a few years now. It was about time for it to become reciprocal.
I wish (and have wished since US-VISIT started) that Europeans would instead have persuaded the U.S. to stop doing it, instead of copying the U.S. or reciprocating.