Planning a trip down the Northeast Corridor? Leave the Hitachi Magic Wand at home. Or say hello to the Fung Wah. According to WBZ News, Amtrak officials say that "mobile security teams" are poised to swoop, unannounced, into South Station and other train stations between Boston and D.C. and perform some bag-searching. Here's the proposed procedure: Randomly-selected passengers will enjoy a few squirmy moments as their carry-on bags are probed with a "special swab"......