Am I being censored?

Two days ago, I changed my Twitter location and time zone to match Tehran. If I, in my comfortable home where the risk of being hurt is about as close to zero as it ever gets for a human being on this planet, can do this one little thing to help those risking all as they pursue democracy, I figured I should.

Now, when I click on the #iranelection hashtag - which, btw, is the first hashtag on the list - I get, "no results for #iranelection".

But the other hashtags related to Iran are all working as far as I can tell - certainly the trending topics ones are.

Am I being censored, or is Twitter being overloaded?