comes to monitoring global hot spots such as syria and iran. >> whether it's falling signals or tracing weapons, whether we're making sure that the treaties that the u.s. has signed are actually being enforced, we contribute to all of those missions. >> i imagine the iranian nuclear agreement falls into that category. >> we can contribute. >> to see where the data from the agency is collected, we came here. a place you've probably never heard of, a place you've certainly never seen. until now. >> we're approaching the mission ground station at white sands, new mexico, the very existence of this ground station and others was classified until 2008 and we're the first reporters allowsed inside. >> reporter: inside this ground station, the place the nro calls