The Liberty Sun, a U.S.-flagged cargo ship bound for Mombasa, Kenya, was attacked Tuesday by Somali pirates, according to a NATO source with direct knowledge of the matter. Pirates attacked The Liberty Sun, a U.S.-flagged cargo ship, but were unable to board. The pirates never made it onto the ship. The vessel is now being escorted by a coalition ship, still bound for Mombasa. The source could provide no details on where the vessel was attacked but said it is suspected the pirates were based on a mother ship somewhere in the area. Pirates attack U.S. cargo ship but fail to get aboard - CNN.com ----- But yet: ----- Defense Secretary Robert Gates says he doesn't see any immediate need to bulk up the military response to piracy on the high seas. Gates adds, however, that those decisions are being made moment by moment. Gates: No Immediate Need to Beef Up Military Attacks on Pirates - Presidential Politics | Political News - FOXNews.com ----- When will the Obama administration get a clue?