Opportunity?

I've been invited by a colleague to teach a course in Iran in January. It seems like a once-in-a-lifetime opportunity, but I'm not sure I've got the stones to go to Tehran, especially since:

1. My Passport is issued by the Great Satan.



2. The UN Security Council is debating economic sanctions as we speak.



3. In case of trouble, the only resource for Americans is "The US Interests Section" of the Swiss Embassy, which sounds like a dusty corner of a smalltown library. ("Excuse me, do you have any maps of Ohio?" "Yes, check the US Interests Section.")

Thoughts, anybody? (My mother is having a heart attack right now)