OCKHAM’S RAZORThis is the piece to start with: Frank Rich explains it allhttp://www.nytimes.com/2005/07/17/opinion/17rich.htmlWELL, of course, Karl Rove did it. He may not have violated the Intelligence Identities Protection Act of 1982, with its high threshold of criminality for outing a covert agent, but there's no doubt he trashed Joseph Wilson and Valerie Plame. We know this not only because