expert. does section 702, admiral rogers allow you to collect information on u.s. citizens? >> as intentionally targeted individuals in scenario. >> does it allow to you target foreigners to do what's called reverse targeting of u.s. citizens knowing those u.s. citizens are in communications? >> no, it does not. >> does it allow to you collect information on foreigners who are on u.s. soil? >> no. >> it doesn't. >> 702 is outside the united states. >> so you can collect information on an isis terrorist in syria and he comes to the united states and you can no longer collect information on his cell phone or his e-mail address. >> we're an interrogation organization. we coordinate with the fbi. we don't do internal domestic collection broadly. >> mr. rosen stein, do foreigners have constitutional rights? >> when they're in the united states, senator, different rules apply. that's why i think it's important for people to understand that section 702