NATIONAL HARBOR, Md.--The Navy is now likely to employ the Army’s Longbow Hellfire missile for the Littoral Combat Ship’s surface warfare mission module after determining it provides greater capability than the previously planned Griffin missile, a senior officer said Wednesday. Rear. Adm. John Ailes, the program manager for the LCS mission modules, said at the Navy League’s Sea-Air-Space exposition the Navy can acquire the Longbows from the Army’s stock of about 10,000 with “no cost risk at all.” The Longbow…