General Dynamics Electric Boat will christen (SSN-778), the U.S. Navy's newest and most advanced nuclear attack submarine, at a ceremony at its shipyard on Saturday, June 21. Cheryl McGuinness of , is the ship's sponsor. McGuinness lost her husband, Tom McGuinness, on September 11, 2001, in the attacks. He was the co-pilot of American Airlines Flight 11, which was flown into the north tower of the . The event's principal speaker is Adm. Kirkland H. Donald, director of Naval Nuclear Propulsion. Cmdr. Michael J. Stevens, a 1990 graduate of the U.S. Naval Academy, is the ship's commanding officer. The is the fifth ship of the class, the first U.S. Navy combatants designed for the post-Cold War era.