The man who assured Senator Charles Grassley that no “gunwalking” had taken place during Operation Fast and Furious has just resigned from the Department of Justice. “The allegation…that ATF ‘sanctioned’ or otherwise knowingly allowed the sale of assault weapons to a straw purchaser who then transported them to Mexico—is false,” wrote Assistant Attorney General Ron Weich in his now infamous February 4th, 2011 letter to congress. Nine months later the DOJ retracted that letter, advising congress it contained “inaccuracies.” It was just 48 hours after news that a Contempt of Congress charge against Attorney General Eric Holder would be put...