This drone reportedly was programmed to return to base in the event communication was lost with its controllers. Obviously, that system failed. I'm sure the CIA has had a few successes in recent years (beyond the Bin Laden hit) that we haven't heard of, but its failures and losses are piling up. This one is a doozy. Yep. China and Russia are already lining up to study it. But Israel shouldn't disparage the US for this failure. Israel provided advanced drones to Turkey and it's likely Syria and Iran have already gotten a peek at it. And they've provided access to Russia too, though not yet for its most advanced models.
Australian, Thai journalists acquitted of defaming Thai navy (AP)
from the article: Iran state television displays 'downed U.S. surveillance drone'