its relationship with iran. >> finally reached an agreement on an outline for a nuclear deal. >> iran deals to very intrusive inspections for many years. >> to assure anybody who has concerns, our program is exclusively peaceful. >> the issues at stake here are bigger than politics. >> mass gunmen stormed a college campus. >> they started jumping up and down. >> the al qaeda linked terror group al shabab is claiming responsibility. >> at least 147 people are dead. >> here in new york, two women are under arrest. >> accused of plotting to set off bombs in the u.s. >> they never got their hands on any kind of finished bombs. >> investigators believe they were inspired in part by isis. >> chilling new details about andreas lubitz had recently researched cockpit security and ways to commit suicide. >> investigators hope to learn what co-pilot andreas lubitz was doing when he was alone in the cockpit.