There's a limit to how presumed innocent people can be. If all 1000 people were involved in a shootout and fired on the police first, then it's not unreasonable that they were killed.

If it makes you feel better, there are contexts where your right to privacy should be suspended too. If the police see you kidnap a child and put him in your underwear drawer, it seems like there should be a procedure for them to violate the privacy of your underwear drawer without needing to call a judge.

And if there were 10,000 privacy violations nationwide and all of them were well-documented emergency circumstances, I'd hesitate to even call it a problem(or at least, not a problem with the police's behavior; there's clearly a childnapping problem).