Summary: British submarines can launch missiles.<p>From the article:
"..nuclear bombs were armed by turning a bicycle lock key. There was no other security on the bomb itself."<p>By the way, it's a freaking submarine.<p>Perspective: I lock a gun's trigger with a bike lock, and then place it in a safe.  The safe is inside a bank vault.<p>If I do manage to steal the gun, then I can pick the lock and use it.
If I do manage to steal the arming key, then I can convince the crew to launch the missile.<p>Would you like to play a game?<p>edit: Grammar