to -- required to spy on ordinary citizens. what happens when you're sr. vailing foreign terrorists? how do ordinary americans get swept up in that and get surveilledsome. >> from time to time, american citizens, some of them perhaps more than others, but nobody really knows how often it might happen, if you're talking to someone who turns out to be an agent of a foreign power, somebody on foreign soil lo -- who's being surveilled under fisa's 702, your end of the conversation will also be scooped up. we call that incidental collection. it'll be then stored on an finishes sa database. -- nsa data base. and what i've been arguing for years is in order for them to do a query of your name knowing that you're a u.s. citizen before they type in maria bartiromo, show me everything that we've gotten on her on the data a base, that really ought to require a warrant. you see, because they've collected that without a warrant in order to access it knowing