The US military's controversial drone programme has been criticised for causing extensive civilian casualties, especially in Pakistan and Yemen. But now the US navy is testing its first drone.<br /><br />The X-47B unmanned aerial drone is designed to make take-offs and landings aboard aircraft carriers at sea. And while it does not carry missiles, that does not mean it will not in the future.<br /><br />Al Jazeera's Kimberly Halkett reports from on board the USS Theodore Roosevelt.
