New questions are being raised over the Bush administration’s claims that the Iranian government is sending sophisticated roadside bombs into Iraq. On Monday, Gen. Peter Pace, the chair of the Joint Chiefs of Staff, said he has seen no evidence of any links between explosives killing Americans and top Iranian officials.

Gen. Peter Pace: “We know that the explosively formed projectiles are manufactured in Iran. What I would not say is that the Iranian government, per se, knows about this. It is clear that Iranians are involved, and it’s clear that materials from Iran are involved, but I would not say by what I know that the Iranian government clearly knows or is complicit.”