Of course you’re going to say you’re fine and not let the Police in if you’re hiding a terrorist. Or if one is hiding in your attic and you don’t even know about it.
You can’t say because this one search didn’t find him that searches never work.
Stripping everyone in the neighborhood would work even better. It doesn't matter what "works" or what doesn't, only the legal pursuit of the perp. Once they lost him and had no idea where he went, all their forced searches were illegal.
I can say that searches could always work. There are hundreds of unsolved crimes now. Why isn’t it OK for the police to search door-to-door of every dwelling in a city, with a full lockdown, in order to find every person of interest that happens to be in the city?
There are always known criminals that are around somewhere. If the fact that there is someone who killed people loose is enough to justify locking people in their houses and police doing no-warrant searches of entire communities, then the police can do that any day of the week.
And if they run out, they can start searching for all those people who they THINK might be building bombs in their basement. I’m pretty sure if you searched an entire neighborhood, you could find something illegal going on somewhere.