feel it's time for me to step forward and tell what I know about Karl Rove's conversation with columnist Robert Novak in which Mr. Novak reportedly told Mr. Rove that CIA operative Valerie Plame had been responsible for her husband Joseph Wilson going to Niger to debunk the White House's claim that Saddam Hussein was shopping for uranium in Africa to make nuclear weapons and that's why we invaded Iraq, and Mr. Rove said, ''Yes, I've heard that, too.'' Mr. Rove has been accused of revealing the identity of a covert intelligence officer. This simply isn't true. I happened to...