San Francisco's Golden Gate Bridge and four other Bay Area spans may be vulnerable to collapse from a ship strike, according to a new report compiled after the Francis Scott Key Bridge collapse in Baltimore. The report from the National Transportation Safety Board names 68 bridges across 19 states are at an unknown risk for a collapse in a vessel collision and urged bridge owners and officials to conduct a vulnerability study to determine the risk. The NTSB also lists the Antioch Bridge, the Ben