The headline of this article is odd: "Ex-Soviet engines fingered after Antares ROCKET launch BLAST". It's obvious what you mean, but I'm trying to deconstruct "Ex-Soviet engines". The engines came from Soviets, so they once were Soviet engines. But they aren't Soviet engines any more. Or are they? If they're now Russian engines, then why not call them Russian engines?
Reminds me of my ex-wife who insisted on saying she was from "the former Czechoslovakia".