"Without getting to too much detail, what I can say is that we've taken steps to protect our equities with respect to that particular drone, that particular aircraft and its United States property," Kirby said. "We obviously don't want to see anybody getting their hands on it beyond us."
We need to send a swarm of drones using dressed-up Russian-level technology for them to down over the Black Sea and waste their resources recovering. Or not. Putin is 70.41yo. Russian life expectancy is 71.34 years. I expect we can wait him out.
Precedent: https://en.wikipedia.org/wiki/Project_Azorian