A senior U.S. general flew to Iraq’s vast desert frontier with Iran on Sunday and vowed to stop what he said was the smuggling of bomb materials from Iran that is wreaking havoc among American troops. Landing by helicopter under the gun sights of Iranian border guards perched on a watchtower across the frontier, Lieutenant General Peter Chiarelli, the No. 2 U.S. general in Iraq, said U.S. and Iraqi forces securing the border will do “all we can” to stop roadside bombs. Full Story