A year ago this week, U.S. Border Patrol Agent Brian Terry was murdered. He died protecting his country from brutal Mexican gangsters. Two AK-47 assault rifles were found at his death site. We now know the horrifying truth: Agent Terry was killed by weapons that were part of an illegal Obama administration operation to smuggle arms to the dangerous drug cartels. He was a victim of his own government. This is not only a major scandal; it is a high crime that potentially reaches all the way to the White House, implicating senior officials. It is President Obama’s Watergate. Operation...