A better analogy is a storage locker. AFAIK police need a warrant to search "your" storage locker even though it's on someone else's property. I don't see why d

A better analogy is a storage locker. AFAIK police need a warrant to search "your" storage locker even though it's on someone else's property. I don't see why data in the cloud should be any different. Pre-emptively scanning everyone's data is equivalent to officers rummaging through all the storage lockers in a facility "just in case" they find something illegal.