House Republicans slam Obama's attorney general just as the right-wing conspiracy theory on the infamous gun operation falls apart.

The "Fast and Furious" imbroglio may have just gone sideways on House Republicans. Just prior to them leading a successful House vote for contempt against Attorney General Eric Holder on Thursday, a far-reaching investigation published by Fortune magazine poked major holes in the conservative storyline about the alleged gun operation. Claims that law enforcement engaged in a deadly plot to let Mexican outlaws smuggle US guns, the magazine reports, are based on allegations by a lone whistleblower who may in fact be the only person who did any illegal gun-smuggling. The real cause of violence and crime south of the border, it reports, is lax gun laws in Arizona and elsewhere pushed by Republicans and their friends at the National Rifle Association.