Matthew Yglesias wonders why Castro was so prominent on the world stage.

The answer is that it was not him, but rather the fact that he made so many people in the US power establishment crazy.

His conclusion is spot on:

I think there’s probably a lesson to be learned with regard to current issues with Islamist political movements around the world. For good reasons and for bad ones, the romance of thumbing one’s nose at the USA has powerful and important resonance for a lot of people around the world. Under the circumstances, it rarely serves our interests to get into dramatic confrontations with leaders who are far too puny to objectively threaten our interests. After all, what significance would Castro have without his superpower adversary? US persecution of the Communist regime in Havana is really the only thing it has going for it.