knows more than it's letting on. >> we have confidential sources that have shown us why the administration's representatives knew these weapons were going to the cartels. they insist they didn't know the guns were going to mexico. they knew immediately that guns recovered at the murder scene of border control agent brian terry purchased by the fast and furious suspect heidi avilla but officials tried to cover it up. according to a letter, "in the hours after agent terry's death, assistant u.s. attorney tried to prevent the connection from being disclosed. >> everybody should be outraged. used as collateral.