Ahmadinejad announces the intention of achieving the ability to use Iranian uranium for medical purposes as though it were a challenge to American superpower status. That's good for him politically, at least within his close personal circles. Then,
So the politicians on both sides who either are extremists looking for a good war or who want to be perceived as extremists egg each other on, feed off each other, and create a dangerous dynamic that could truly lead to war and that at a minimum does in fact empower extremism on both sides.
But the reality is even more complicated than that because Iran actually is a threat - not to US national security but to a foreign policy goal that is now very popular in Washington: ensuring that everyone in the Mideast bow down to American leadership.
There is nothing natural about Israel having a regional nuclear monopoly, being able to get away with thinly veiled nuclear threats against non-nuclear Iran, having the “right” to tell neighbors (e.g., Lebanon) what weapons they are allowed to possess, or being allowed to attack neighbors (e.g., Syria) whenever they build or buy something Israel disapproves of. There is also nothing natural about