BAMAKO, MALI - NOVEMBER 20: Malian troops take security measurements outside the Radisson Blu hotel in Bamako on November 20, 2015. Gunmen have taken 170 hostages and at least 20 people, including 18 hostages and two attackers have been killed in the siege of the Radisson Blu Hotel in the Malian capital of Bamako, Malian security officials said. (Photo by Habibou Kouyate/Anadolu Agency/Getty Images)
