mr. leckar: no. justice scalia: why? because there is no invasion of privacy. so why is this an invasion of privacy? mr. leckar: because it is -- it is a complete robotic substitute. it's not a -- it's not a tail. and interestingly enough, your honor. the government only cited in its brief one instance of a -- hour surveillance for all of days. what you have here, justice scalia, is -- i'm going to refer to your dissent. justice scalia: times zero equals zero. if -- if there is no invasion of privacy for day, there is no invasion of privacy for hundred days. now, it may be unreasonable police conduct, and we can handle that with laws. but if there is no invasion of privacy, no matter how many days you do it, there is no invasion of privacy. mr. leckar: justice scalia, what -- i'm going to refer to your dissent along with justice breyer in bond v. united states. a gps in your car is, or anybody's car, is like -- without a warrant, is like having an -- it makes you unable to get rid of an uninvited str