Orig. bildtext... SHANGHAI CONSULATE BLOCKADED BY CHINESE Shanghai, China. A view of the United States Consulate in Shanghai where the entire staff was penned up by a chinese mob yesterday, according to a state department announcement. Communist police refused to intervene, despite official U.S. protests. U.S. consul general John M. Cabot is among the officials whom communist authorities are holding in an attempt to force them to sign so-called shop guarantees, the state department revealed. These shop guarantees are an old chinese custom. Under them, people leaving a city leave someone behind to guarantee that any unpaid bills will be made good. sites: KINA ;SHANGHAI ;USA*