CBS has taken the lead among the major news outlets to cover the story of the ATF allegedly aiding the illegal flow of guns into Mexico.
David Codrea (one of the leads who broke the story) has two links: Grassley asks for independent investigation of ATF
And: CBS: ‘Documents point to ATF gun running since 2008’
Our Senator Grassley really sunk his teeth on this one. (And to think I didn't think he deserved to stay in office - still doesn't mean I voted for Roxanne)