Related or not?
This morning, a US Air Force MQ-9 "Reaper" drone crashed in Seychelles.
Meanwhile, Iran's government is claiming that it has figured out how to control the RQ-170 Sentinel drone it captured last week.
The two drones are different models, even made by different companies ... but is it possible that their control systems are similar enough to be vulnerable to the same kind of attack, and that Iran is telling the US "you might as well ground your drone fleet -- if not, we'll be happy to do it for you?"
[Update, 12/15: Another possibility I'm not hearing discussed much is that the drone was, for one reason or another, intentionally put into Iranian possession. For example, after being modified to give them an incorrect understanding of how the US drone fleet works. Or to corrupt whatever diagnostic/probe equipment they plug into it with a virus. Etc., etc. Remember, even the wildest conspiracy theories seldom get as weird as the real world of intelligence and counter-intelligence.]