infiltration on the part of al-qaida or isis as part of a planned effort or was this a one-off radicalization. the end of the day, i think senator scott is absolutely right. we have to get to the bottom of this vetting program. i will say, ed, these programs i personally participated in them. i've trained with british, jordannan, japanese, allies all over the country. they're important for two reasons. one, they're training on american equipment we're selling our allies abod and that interoperability and the ability to fight together is important. we're often training with the foreign nation's best and brightest, obviously not the case here. >> didn't happen here. >> we need to get to the bottom of why. we're going to demand some briefings and understand how this happened. >> you make some very important points. let me get to another topic. we learned this grad student from princeton, an american citizen has been released, a big victory for the president to get him out. a u.s. official told me there was no sanctions relief, no