Nuclear Power: Two New Subs Launched Image is dark and hard to see. Added might for Uncle Sam's deterrent power as two more nuclear-powered submarines join the fleet. The "John Adams" is launched at Portsmouth, New Hampshire, while the "Natan Hale" goes into the water at Groton, Connecticut. The new subs will fire the advanced A-Three Polaris missile. Woman christens submarine. Sailors saluting aboard ship as submarine is launched.