Tell Congress to rest easy – there may be a new way to cover shipbuilding costs. The Pakistan Navy in late February sealed the deal to buy the 30-year-old frigate McInerney for $78 million. This is a real bargain for Pakistan, which is getting one versatile ship. The second ship of the Oliver Hazard Perry class, Mac has twice received the “Hook ‘Em” Award for excellence in Anti-Submarine Warfare, was awarded the Battle “E” during the first Gulf War, has served above the Arctic Circle and as part of SouthCom’s counter-drug operations. Most notably, the ship on Sept. 13, 2008,…