Gil Kerlikowske was hoping to make it through at least his first week on the job without being awakened in the middle of the night. President Barack Obama’s new head of Customs and Border Protection, Kerlikowske could have used a week of quiet as he began to figure out the nation’s largest law enforcement agency, with its 46,000 gun-carrying Customs officers and Border Patrol agents and massive $12.4 billion annual budget. He didn’t get it. On his sixth night after taking office in March, a Border Patrol agent’s single gunshot 1,500 miles away from Washington interrupted Kerlikowske’s sleep. The gunshot itself wasn’t all that surprising; Border Patrol agents regularly open fire on suspected smugglers, border crossers and people harassing them from across the Mexican line. So often, in fact, that the agency doesn’t even bother to release details on most shooting incidents. But this wasn’t a regular shooting incident.