BY SUSAN ESTRICH While details are still emerging about Aaron Alexis, the man responsible for killing 12 people at the Washington Navy Yard, this much is already clear: This man never should have had a security clearance that allowed him to enter the Yard. And he never should have been permitted to buy a gun. This is a man with a history of repeated infractions as a Navy reservist and troubling run-ins with authorities. In […]

Another Set Of Lessons
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