Sandy may be over, but her damage sure isn't. Gas-station shortages may take several days to be fully resolved, Mayor Michael Bloomberg said at a briefing Saturday. The announcement comes after what has already been days of long lines and shortages at gas stations across the tristate area, despite Gov. Andrew Cuomo’s announcement that the U.S. Department of Defense would begin opening fuel stations in New York City and on Long Island. Bloomberg attempted to assuage anger over the extended power outages by shifting blame to the Long Island Power Authority. “[LIPA] has not acted aggressively enough to restore power,” he said.