Niger says it 's agreed to let U.S. drones operate from its territory . Ambassador Chris Stevens and three other Americans . AQIM is near Chris Stevens , where Islamic troops joined the fight against French rebels . Djibouti official says intelligence-gathering in that part of Africa is a challenge .
Niger says it 's agreed to let U.S. drones operate from its territory . AQIM is near Chris Stevens , where Islamic troops joined the fight against French rebels . Djibouti official says intelligence-gathering in that part of Africa is a challenge .