It's flattering to make a picture which becomes a classic within 10 years; it's not so flattering, however, when people get the impression it's the only picture you've ever made.
I would also point out that many governments that chose not to support this war - certainly, the French president, Jacques Chirac, as I recall in April of last year, referred to Iraq's possession of WMD.
If I had to start over, I'd pursue photography - probably to the exclusion of acting.