Powell's Big Anniversary

Think Progress reminds us that today is the fifth anniversary of Colin Powell's big speech to the U.N. about Iraq's (non-existent) WMD program. What I find interesting is how Powell seemed to have changed his tune about a year ago saying he should have never made that speech. When I saw Powell speak a couple of weeks ago he was asked about the U.N. speech. He defended it saying that it was the intelligence they had. So does Powell believe it was wrong or right to give that speech and does Powell change his view based upon the audience? It is worth mentioning that I saw him at Miami University, Ohio, which is a pretty conservative college.