SPRINGFIELD, Mo. - The FBI is aware of reports of [middle eastern] men [from Michigan] visiting Walmart stores in several cities in Missouri and purchasing or trying to purchase large quantities of cellular telephones. An FBI spokeswoman won't say exactly how much its agents are delving into the purchases. Some of the cities where the purchases and attempted purchases are reported by police and media are Macon, Columbia, Jefferson City, Lebanon, Ava, Jackson and Cape Girardeau. Break After an earlier version of this story was posted on Thursday afternoon, the Marshfield police chief called to say that a man who...