I will give a full translation of relevant passage as soon as possible. In brief, the source is Scaramella who attributes the accusations to Litvinenko. Scaramella links Mogilevich, Bin Laden and various mafias to an effort to recover phantomatic Soviet nuclear weapons that Mario asserts are in the Bay of Naples.
The prosecutor notes that Scaramella's claims to Guzzanti are in contrast with wiretaped conversations between Litvinenko and Ganchev as well as between Talik and his wife.
With the caveat that Litvinenko may have later signed claims similar to Scaramella's claims, it does cast a shadow over any document allegedly by Litvinenko that may have been shown to Scott-Clark and Levy.
The Naples Bay nuclear weapons hoax was a favorite of Scaramella. Lou Palumbo, an ex-CIA agent worked as a consultant for the Florida based Incident Management Group. Lou introduced Filippo Marino to the IMG where Marino rose to become senior consultant. Marino is Scaramella's associate in their company the ECPP.
It is not the first time the Ukrainian press was used as a conduit for bogus information in tandem with the Berlusconi commissions.
I think that SHVEZ, who took the material to the U.S., is probably the same person as Shvets who was the source of the disinformation about how Litvinenko died which was recycled uncritically in Tom Mangold's programme on BBC Radio.