mass routine location tracking warrantlessly. that's a threat to privacy, civil liberties and the character of our society. what we're saying, we're not asking law enforcement to throw technologies out. we understand they are useful. we think there should be a retention period of this data of days or weeks and not months or years. you gave a couple examples. in maryland their license plate leaders, housed at the fusion center, spy center, captured 89 million plates in one year, over 99% of which are were underogatory, information on perfectly innocent people. this the real threat. it's sort of a corollary to the nsa scandal with the metadata program where you have the government making an argument it needs to collect vast quantities of private information about perfectly law abiding people and use that information maybe in the future just in case.