courtl, let me give the specific citations on that. the court of appeals, the florida court of appeals, found that the dog and the officer were lawfully in place. that's ja pages 104, 105, 112, 116 and 120. before the florida supreme court at oral argument, respondent conceded that there was no reasonable expectation of privacy in the porch, and the florida supreme court accepted that concession. that's petition appendix page 31, also noted by the dissent in pages 78 to 79. in the brief in opposition to cert, respondent said that the police could approach the front door for a knock and talk, and made no separate argument about the dog's presence there making it not lawful. so as this case comes to the court, it is with the dog and the officer lawfully in place at the front door, approaching the front door just like any girl scout, trick-or-treater, or anyone else could. and just to respond, justice ginsburg, to the questions that you raised, the police officer's purpose in approaching the front door does not mean that the officer can't