I’ve seen a few articles now that US fighter jets have kill switches in them, so the US could just render them useless for anyone they’ve sold them to.
Is this true? It sounds insane to me, I’ve always assumed that countries that buy these jets have full control over them. It’s a gaping hole in your defence if you don’t.
Especially given how bad the US is with regards to keep backdoors and their keys secret. Just look at what state hackers did with American telco equipment recently.