The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
I'm going to carry this around with me until I have it memorized. We'll see if I have the balls to recite this instead of opening my bag if asked.