[Africom] Nairobi -- Imagine two scenarios. Scenario 1: Dawn breaks over the capital of Kenya. A U.S. diplomat leaves his residence for the embassy. After a 20-minute ride, his car arrives at the gate and he enters. He sits in his office to begin the day when, all of a sudden, he hears an explosion through the open window. It seems far off; it is not a large explosion. He thinks maybe it was just a car accident, but minutes later he smells something bitter in the air. His eyes water, sirens blare and a U.S. Marine Corps