If they are building a bomb (which is debatable), it's because they are scared shirtless -- they are completely surrounded by us and our allies.
Every flag on this map represents a US military base.
I've been railing against the dangers of Islam for 20 years, so you don't have to tell me how nuts they can be -- I've been to the ME twice. But Muslims are primarily a danger as a neighbor, not halfway around the world -- unless you abuse them.
My own dog who I trust with my 3 yr old nephew -- if you were to starve him, corner him and continually threaten him with harm -- even he would turn into Cujo over time. How much truer is that of Iranian Muslims who start out a little paranoid and crazy to begin with?
But attacking Iran would make us LESS safe over here -- there are already hundreds of thousands of Iranians here in the US. That's one cage you really don't want to rattle.