This is the reason why Bush should be impeached
In July, two White House officials, in retaliation for former ambassador Joseph Wilson’s criticism of Bush’s false WMD info, revealed that Wilson’s wife, Valerie Plame, is a CIA operative. To reveal something like this is illegal and a breach of national security. Apparently these two officials called six different reporters for different papers to illegally leaking the information; it was eventually printed by syndicated columnist Robert Novak. See the Washington Post story, and the New York Times story on this.