For now, the data center in West Virginia transmits information about potentially high-risk ships traveling through San Francisco Bay to Cmdr. Jeff Saine. A year ago, Saine was a reservist working as a Safeway manager in Chico, California. Now he oversees the San Francisco arm of the Coast Guard's new sea marshal program. In a watch-and-wait role that's similar to that of the air marshals now assigned to commercial jets, armed teams of sea marshals board ships several miles from the harbor entrance and escort them to dock. Vessels of special interest include cruise ships, which, with as many as 5,000 passengers and crew, could provide a devastating target for terrorists. Decked out in blue jumpsuits and web gear, marshals station themselves in key spots on the vessel-the bridge, the engine room, and the rear steering compartment-places from which it would be possible to take control if, say, crew members tried to smash a ship loaded with crude oil against a bridge. "We'll put people on the bridge from 12 miles out at sea to the (inland) ports of Stockton and Sacramento," Saine tells me.