Post in progress.... (not finished yet !)
Seymour Hersh started asking questions much sooner than Joe Wilson's July 6 2003 op-ed piece:
http://www.newyorker.com/fact/conten...030331fa_fact1
http://wotisitgood4.blogspot.com/200....html#comments
On March 23, 2003, it looks like Bush gave Cheney unprecedented authorization to de-classify secret info about Wilson's trip to Niger:
http://news.nationaljournal.com/articles/0414nj3.htm
....this coincides with Hersh's work on his article, published in New Yorker issue dated March 31, 2003......