When the Somali militant group Shabab attacked Garissa University College, Stanley Muli, 22, hid in a wardrobe, wondering why the army stationed nearby was taking so long to arrive. For two hours after the attack at 5:30 a.m. Thursday, no one came to the rescue as Muli listened as Shabab fighters searched rooms and killed terrified students. He thought bitterly about the students#8217; protest last November over the lack of university security, when the army had arrived swiftly and had beaten many students. #8220;I was just praying [to] God that the [Kenya Defense Forces] would come,#8221; he said Sunday. #8220;I was just thinking how come they have taken so long, because the barracks...