KNOXVILLE, Tenn. - Military officials and the FBI are investigating a series of suspicious phone calls to families of recently-activated Tennessee Army National Guard soldiers possibly bound for Iraq. The wife of a soldier in the 278th Armored Cavalry Regiment told WVLT-TV this week her daughter had taken strange calls from a man with an accent who questioned her about the unit's deployment itinerary. R. Joe Clark, special agent in charge of the FBI's Knoxville office, said he was not aware of similar phone calls reported elsewhere in the country. "It's not as much an investigation as it is a...