Say Uncle brings up the topic of anticipatory search warrants. Those would be warrants issued not because you've done something, but because they think you might do something.

["anticipatory" search warrants] anticipate the defendant doing something in the future . . . and essentially find that, while there is no probable cause right now, upon the defendant's doing the anticipated action, there will be probable cause in the future, so let the warrant issue now, to be executed only after the anticipated act. The minor problem is that the Fourth Amendment clearly says "no warrant shall issue but upon probable cause."

Uncle also beats me to the punch line with, "So, where's the division of future crime? I want my minority report."