I know this probably falls into the category of red-baiting hysteria, but sometimes I've wondered (not seriously, in more of a spy-vs-spy, campy, tinfoil hat way) if the Kotlin programming language is a secret plot by the Russian government to embed backdoors in everything compiled with it. How many people have done a deep inspection of the compiled product?
(Insert balloon boy meme of the conspiracy theory guy at his bulletin board)
Of course, the Russians would probably be justified in wondering the same thing about a programming language created in the United States.