Lecture by Rick Steves. In another talk, Steve's made the following observation: "It's a good idea to get to know people before you start bombing them."
Some facts:
1. Iran has a population of 66 million people - twice of Iraq's
2. Unlike Iraq, Iran has not had its military beat up for the last twenty years as Iraq did before we invaded it
3. Iran is not three separate people - Sunni, Shiite, and Kurds. It's one people and they are Persians, not Arabs.