hundreds American soldiers are killed in an ambush . Kidnapping of schoolgirls an `` unconscionable crime , '' says R-Arizona . Nigeria is using drones and manned surveillance aircraft in The United States . Concerns about intelligence sharing and civilian deaths complicate the situation .
At least four Nigerian soldiers are killed in an ambush . Kidnapping of schoolgirls an `` unconscionable crime , '' says Kerry . The United States is using drones and manned surveillance aircraft in Nigeria . Concerns about intelligence sharing and civilian deaths complicate the situation .