Otherwise, it would be a "seizure" under the Fourth Amendment - it's just one little clue that they know that what they're doing is wrong and unsupportable under the Constitution and the Bill of Rights.
I already know the argument the ACLU will make to try to shut these searches down. But I won't bore you with that. Not even a Clinton judge will, I think, be stupid enough to strike down the searches. And if he/she does, the Circuit Court will promptly reverse.
Congressman Billybob