past military uses on its nuclear program. we're talking about the centrifuges that it wants to retain in the future. so there are still substantial issues and substantial gaps here but nevertheless a state department official did say yesterday that compared to the previous day, some progress had been made. but the deadline's rapidly approaching. just under two weeks away now, john. >> need concrete results from that meeting before the deadline. nick robertson, thanks so much. happening this morning, a u.s. air force veteran goes before a judge, accused of attempting to join isis in syria. the experienced airplane mechanic was caught and turned back by turkish thrtss in january. investigators found a letter on his laptop in which he declared himself a mujahideen. pamela brown has more from washington. >> john and christine, the 47-year-old from neptune, new jersey who was at one point a

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