Why sanctions against Iran don't work

As some of you have probably figured out, I am traveling today. At the moment, I am sitting in Terminal 3 in London Heathrow, although by the time you see this post, I will be airborne.Forget that most of the security staff here appears to be what they so politely call 'South Asian.'At 5:00 this evening, Iran Air, the airline of the Islamic Republic of Iran (yes, that's what it's officially