So... a couple Iranian speedboats walk up to a US Navy destroyer and say, "Hey, dude! We're going to blow you up!"
And the Navy says, "Oh, no you don't!"
And the American public says, "Stupid Navy! How could speedboats blow up a Navy destroyer? You're seriously overhyping this thing, probably playing it up for political reasons or propaganda."
And the American public never remembers the USS Cole. Al Qaeda has already successfully demonstrated that a speedboat can sink an American Navy guided missile destroy and kill American sailors.
Fortunately, the Navy keeps on protecting America anyway.