Yard signs channel the fears — and hopes — of a fraught era - The Boston Globe [vc_separator type='transparent' position='center' color='' thickness='' up='' down=''] [vc_separator type='transparent' position='center' color='' thickness='' up='' down=''] Yard signs are the new bumper sticker. The messages are direct, stark, unambiguous. One, on a dead-end street...