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Four star james cartwright for material related to what was in david savers book about iran's nuclear program. the journalist wrote this book. had a lot of sources but nbc news is reporting it was general cartwright who is under investigation for leaking details of the computer virus that the u.s. put in the iranian nuclear program to try to slow it down. unprecedented that a four star general might have engaged in this. there's a lot of befuddlement. cartwright not just any general. very close to president obama when he served. an expert in missile technology, cyber warfare and nuclear weapon...

>> reporter: that's david an highly experienced sailor. he sailed the high seas for decades. him, his wife, their teenage son and four others are missing. maybe lost at sea. >> it's like a roller coaster. >> you get good news and then bad news. >> reporter: it left on june 3rd for a 12 day journey. later that day a member of the crew called a meteorologist satellite phone saying the winds were 60 miles per hour, the waves 18 feet high. where could they go to get away. the meteorologist advised ed head south and brace for a storm. the next day he got a text message in any update for nina. >> my...

She goes that's david trying to call me again. >> reporter: sherry believes that david's experience and the seaworthiness will keep them alive. >> we say nina comes back to port. she might get disabled but always comes back to port. >> reporter: his son is due to start college next month. he posted i'm not prepared for seeing him leave but i do have an inner peace that says all is well. lance armstrong getting into hot water. this time over comments about the tour de france. >> he told a french newspaper it's impossible to win that tour without doping. amanda davis joins us. tell us, this is...