It doesn't matter what they learned.  The simple fact is, they don't have the military might to back up what they are saying.  Even if they have a torpedo that can bring down a ship, they won't have a lot of them and they have to assume the US knows of them and has developed a plan to combat them. 

Then they have to understand that they would be giving warmongers a justification for attacking Iran military institutions.  I just don't see a way that Iran comes out on top in this scenario.  