If Muhammadan terrorists in say, Chechnya, got their hands on a nuke from say, Iran, the main Muhammadan 'Source' problem for 25 years now, I doubt that Putin would wish he hadn't helped us terminate Iran after covering up his activities WITH SODOM INSANE IN IRAQ until moments before we concluded the war of 1991.
Why would Shia Iran supply a nuke to the Chechens wahabists? The Pakistanis already have a bomb and they are allied to the Chechens - Afghanistan - Pakistan's ally was the only nation that recognized Chechnya as an independent country. It would be easier to get the bomb from Pakistan or to hire the Pakis to make one for them.