Looks like the 9th Circuit got it wrong again!
No warrant, No probable cause, No reasonable suspicion...NO PROBLEM
Federal judge says Fourth Amendment 'is now gone' This is an extraordinary case: Our court approves, without blinking, a police sweep of a person’s home without a warrant, without probable cause, without reasonable suspicion and without exigency -- in other words, with nothing at all to support the entry except the curiosity police always have about what they might find if they go rummaging around a suspect’s home. Once inside, the police managed to turn up a gun "in plain view" -- stuck between two cushions of the living room couch -- and we reward them by upholding the search. ...
The opinion misapplies Supreme Court precedent, conflicts with our own case law and is contrary to the great weight of authority in the other circuits. It is also the only case I know of, in any jurisdiction covered by the Fourth Amendment, where invasion of the home has been approved based on no showing whatsoever. Nada. Gar nichts. Rien du tout. Bupkes.
Whatever may have been left of the Fourth Amendment after Black is now gone. The evisceration of this crucial constitutional protector of the sanctity and privacy of what Americans consider their castles is pretty much complete. Welcome to the fish bowl.