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Yes, very interesting. Some similar points are made at this site. The title of the article is New Evidence Ties Former Soviet Spy's Death to American Hiroshima. Some quotes:

New evidence has come to light that Alexander Litvinenko may have been involved with Islamic terrorists in the preparation of tactical nuclear weapons for use in the jihad against the United States and its NATO allies.

In recent years, considerable attention has been paid to suitcase nukes that were developed by U.S. and Soviet forces during the Cold War. Reliable sources, including Hans Blix of the United Nation, have confirmed that bin Laden purchased several of these devises from the Chechen rebels in 1996. According to Sharif al-Masri and other al Qaeda operatives who have been taken into custody, several of these weapons have been forward deployed to the United States in preparation for al Qaeda's next attack on American soil.

The neutron source or "triggers" of the reported suitcase nukes are composed of beryllium-9 and polonium-210. When these two elements are combined, the alpha particle is absorbed by the nucleus of the beryllium causing it to decay by emitting a neutron. Such "triggers" were a feature of early nuclear weapons in the U.S. and Soviet stockpiles.

Litvinenko, who was born an orthodox Christian, was a convert to Islam with close ties to the Chechen rebels. His last words consisted of his desire to be buried "according to Muslim tradition."

Polonium-beryllium triggers are packaged in foil packs about the size of a package on sugar on a restaurant table. When the twin foil packages are crushed, the elements mix and the neutrons are emitted. A courier transporting nuclear triggers could have had a mishap causing the packages to rupture and a trail of contamination to occur. Polonium-210 is a fine powder, easily aerosolized. Litvinenko could have inhaled the powder, or had a grain or two on his fingers when he ate the sushi. The most probable source of the polonium packets, according to investigators, remains North Korea. The nuclear bomb which was tested by North Korea on October 9, 2006, registered 4.2 on the Richter scale -- displaying an explosive yield of five to 15 kilotons. The Bush Administration dismissed the test as a "fizzle." But the explosion matched the yield of a Soviet Small Atomic Munitions Device (SADM), such as a suitcase nuke with a plutonium core.

Don't know how reliable the source is, just thought I would throw it out there. I got the link from a comment on Debbie Schlussel's blog.