Since none of the proposals to retrieve the American drone in Iran had a chance of success, it's a good thing that the Secretary chose to simply request the return of the drone. The request did not start a war.
The recent losses of the Pentagon's robot Sentinel in Iran, the Reaper in the Seychelles, and the Predator in Kandahar offer a window into a future in which the global skies will be filled with drones that may prove far less wondrous than Americans have been led to believe.
The drones do not make America safer. They inevitably provoke blowback. They are not a way of waging war cheaply. They require massive investments in client states and "nation-building" on the ground. They kill people, but no victories are won from the air.