PHOENIX — The Mexican agents who moved in on a safe house full of drug dealers last May were not prepared for the fire power that greeted them. When the shooting was over, eight agents were dead. Among the guns the police recovered was an assault rifle traced back across the border to a dingy gun store here called X-Caliber Guns. Now, the owner, George Iknadosian, will go on trial on charges he sold hundreds of weapons, mostly AK-47 rifles, to smugglers, knowing they would send them to a drug cartel in the western state of Sinaloa. The guns helped fuel the gang warfare in which more than 6,000 Mexicans died last year. Mexican authorities have long complained that American gun dealers are arming the cartels. This case is the most prominent prosecution of an American gun dealer since the United States promised Mexico two years ago it would clamp down on the smuggling of weapons across the border. It also offers a rare glimpse of how weapons delivered to American gun dealers are being moved into Mexico and wielded in horrific crimes. ‘We had a direct pipeline from Iknadosian to the Sinaloa cartel,’ said Thomas […]