Some things Bush should contemplate before attacking Iran, but won't:
1. It will be far worse than Iraq which hasn't turned out well at all.
2. You will demonstrate to the world the US is no longer a super power.
3. Such an attack will ruin what little respect any country has for the US.
4. Iran will attack world-wide on a scale you won't believe.
5. You can't destroy all of Iran's offensive capabilities fast enough to prevent retaliation.
6. Ten dollar per gallon oil? Oh yeah, that's not a bad thing. I forgot.
7. Obviously Israel, Syria, Lebanon and others will join in.
8. You will wreck what's left of the US military.
9. Even Iranians deserve to live. You will kill civilians in obscene numbers.
10. You will be personally responsible for the deaths of millions of people throughout the Mid-East.
11. People around the world will revile you until the day you die and probably long after. What a great fucking legacy.
12. Your father may finally disown you. Oh, I forgot, you don't really care.
13. Everyone will finally realize just how psychotic you actually are.
14. Your balls will shrivel up and most likely fall off.
15. No doubt almost everyone will see your foreign policy was shit.
16. Paraguay may be too close to the US for you.
17. Because Iran can retaliate, Lebanon is viable, the PA is viable, Syria is viable, you may well trigger the destruction of Israel.
18. You will no longer be able to vacation in the Persian Gulf.
19. Quite possibly you'll see the sinking of one or more US warships.
20. Most likely many of the US's allies will lose thousands of people.
21. You will postpone and guarantee Iran's having nuclear weapons.
22. Its probable Iran won't be the last to develop nuclear weapons as that's the only way to keep you from attacking them.
23. You will prove beyond a doubt you are the most stupid fucker to ever lead a country...period.
24. The 23% approval rate you have may fall down to just members of the US Congress.
25. You will single handedly destroy what's left of the GOP. OK, that could be a good thing.
26. If you're lucky (we're all lucky?) this won't incite a world war.
27. Can you say military coup d’état? They've happened for lesser reasons.
28. You will crush the US economy which you've already decimated.
29. Billions of dollars in military aircraft will be lost. You don't think the Iranians won't fight back, do you?
30. Russia and China are nearby. They may decide its in their best interests to stop you. And China doesn't even have to intervene militarily. It could just call in its US debt. Huge fucking oops!
31. Then there are the American lives to be lost. Can't have enough of those can you, Bush?
This is a partial list. But its a start. Feel free to add to it in comments.