Actually my fellow stateman, the reasons were delivered up front. Your problem is that you have been reading/listening to the MSM that have only talked about one reason for going - WMD. Why don't you find me an article by a major media outlet that has discussed the reasons Bush initially said we were going in other than WMD related articles.

Heres a clue, you're going to be searching for a long time.

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And he said unto them, Ye will surely say unto me this proverb, Physician, heal thyself: whatsoever we have heard done in Capernaum, do also here in thy country.

And he said, Verily I say unto you, No prophet is accepted in his own country.