I'm less convinced. Given the enormous amounts of money that must be up for grabs around maintenance of nuclear bombs (and taking as read the epic levels of endemic corruption in Russia), not to mention the "we're never going to need these, are we?" mindset which seems to have afflicted maintenance of more mundane hardware, I'd have thought that the nuclear option was, if anything, even more susceptible to thievery.
At least, I really, really hope so. I wouldn't want to be around to find it out for real, but the idea that a strategic nuclear strike ended up being a bunch of "fizzles" has some appeal...