For whatever this is worth (I’m not sure how P-210 fits into the scheme of things for a nuclear program), the Israelis do have a nuclear program/arsenal (that is unmonitored by the IAEA). I don’t know what they means in terms of access to neutron sources. That being said, there are a fair number of Russian Jewish immigrants in Israel, but who knows if anyof them have access to some of the stuff that was used to kill Litvinenko. Plus a secret service that is known for pulling off a number of complex operations, including a number of assassinations. I think the only other likely suspect for his death would be Hamas, as there is no love lost between the secular PLO and the religiously oriented Hamas… This doesn’t sound like them though and I doubt they have access to anything like this anyway.
