Since posting that (do you have the link to the original post BTW?), I've noticed a lot of references to the SWP as well as the CP in the FBI VVAW documents. The FBI's memoranda describe the SWP as the force behind the NPAC (National Peace Action Coalition), the offshoot of the New Mobe that helped the VVAW organize Dewey Canyon III. The other major offshoot of the New Mobe that helped organize Dewey Canyon III, the People's Coalition for Peace and Justice (PCPJ), was CP-dominated, and Al Hubbard was one of the VVAW's liaisons to it.
Sure, here's a link to that post: