They never mention that Litvinenko had converted to Islam, nor that the family fought hard to get him a traditional Islamic funeral. I think it is imperative to include that information and to follow the trace it leaves as well. Otherwise he ends up looking like a freedom-fighting whistle-blower. But I think there is more.
Islam, while it is as a problem, is really not the issue here, in light of this information about Russia backing al-Qaeda. Thes are not vague connections we are talking about here. Russia is our enemy. And we are fighting their agents abroad and at home.