Should assassination be an acceptable practice of foreign policy?

its only acceptable if you dont get caught. Or you're so powerful you can tell the other nation to fuck off, like the US has been known to do.

Intelligence agencies are despicable in general, there is a lot of hypocrisy in the way Russia is considered the absolute evil

lol, this suggests there is an alternative or maybe its just started! Also, its a political home grown policy, Kennedy etc blah de fkg blah!

It cannot be outwardly accepted, but will of course continue clandestinely.