"I have no idea what a real bomb looks like," writes a blogger at machinist.salon.com, "but I don't think it’s a plastic board with a 9-volt battery on it." 19 year old M.I.T. student, Star Simpson showed up at Logan International Airport Friday to pick up a friend. Such an event would not normally kick up an international news storm, but Simpson had not taken the general stupidity index into account; something we're apparently required to do now.She was wearing a black sweat shirt with a white plastic board attached. The board itself, known as a socket or bread-board, is...