Kenyan authorities began the grim task Friday of identifying the dead from an attack by Shabab Muslim extremists that killed at least 147, mainly Christian students, at a university in Garissa near the border with Somalia. Police imposed a dusk-to-dawn curfew in Garissa, Mandera and Tana River counties for the next two weeks to deter recurrence of the stealth assault by the Somalia-based militants, the Mail and Guardian of Africa reported from the massacre scene. TOPSHOTS-KENYA-SOMALIA-UNREST Carl de Souza / AFP/Getty Images Members of Kenya's police force deploying Friday to Garissa University College to bolster security on campus after a massacre by Shabab Muslim militants a day earlier....