An unmanned U.S. Predator drone flies over Kandahar Air Field, southern Afghanistan, on a moon-lit night.
An unmanned U.S. Predator drone flies over Kandahar Air Field, southern Afghanistan, on a moon-lit night. Kirsty Wigglesworth AP file photo
An unmanned U.S. Predator drone flies over Kandahar Air Field, southern Afghanistan, on a moon-lit night. Kirsty Wigglesworth AP file photo

U.S. military drone crashes raise concerns

June 23, 2014 10:27 AM