In the 1960's, Bouscaren worked for the racist Pioneer Fund, which attempted to prove "scientifically" that blacks were inferior. Among the leading recipients of its funding was Roger Pearson, the British Neo-Nazi who headed the overtly pro-fascist US affiliate of the World Anti-Communist League in the late 70's. Pearson also published numerous articles by Bouscaren.
In the 1970's, Bouscaren became involved in a number of anti-communist groups, including the American-Chilean Council (Pinochet apologists) and the Council for Inter-American Security, whose membership overlapped heavily with that of the USCWF (including John Singlaub) and which also included Pat Buchanan and other Paleocons.
Here's something on CIS from 1996:
http://www.hartford-hwp.com/archives/45/085.html
This hard-right think tank was the author of most of Ronald Reagan's Latin American policy and repeated the favor for George Bush. The CIS has extensive ties to the Rev. Sun Myung Moon's Unification Church, a cult-like, anti-democratic religion which seeks political influence within the right wing movement internationally. CAUSA, a funding arm of the Moonies with big economic interests in Latin America, is one important link between the two groups. Pat Buchanan is a leading member of the CIS, along with Singlaub and Adolfo Calero of the Nicaraguan Contras. In addition to his efforts in the Philippines and his own involvement in the Iran-Contra affair, Singlaub is head of the former World Anti-Communist League (WACL), now re-named the World League for Freedom and Democracy. WACL was an amalgam of U.S. and European nazis and neo-nazis, Latin American death squads and Asian dictatorships.
CIS is extremely paranoid about the revolutionary potential of Latin America. The group defined Sandinista Nicaragua as "the fuse" leading to "the bomb" of Mexico. This hostility extends to Hispanics inside the U.S. In a paper called "Creating a Hispanic America: Nation Within a Nation?", the CIS virtually equated bilingual education and services with terrorism. "Bilingual education," it declared, "has national security implications." The paper compares the U.S. southwest to French speaking Quebec, with its potential for separatism. It sees the Mexicano and Spanish speaking population as in themselves a threat to U.S. national security and unity.
The paper also indulges in more blatant racism. It describes the Indian ancestors of Latinos as "uncivilized barbaric squatters" with "a penchant for grotesque human sacrifices, cannibalism, and kidnapping women." This is the ideology that connects Buchanan's foreign and domestic policies, and that guides English First leader Pratt in his fund-raising appeals for the English Only cause.
The same article goes on to speak about Pearson and the Pioneer Fund and the general racist attitudes within CIS.
(On edit -- As I recall, though, Singlaub ceased heading WACL in the 80's when all the Iran-Contra crap came down. )
Now, McCain appears to have steered clear of CIS and other groups like it. And he let his name be associated with the US Council for World Freedom only because it claimed it had freed itself of fascist influences and was able to present itself as a "respectable" right-wing organization. But when you start to examine the other groups with which USCWF overlapped, like CIS -- and some of those members in common, like Anthony Bouscaren -- you realize that USCWF was only a kind of a front group for a cluster of far more questionable organizations with clear racist and fascist affiliations.
Did McCain not know this? Did he know and not care? Hard to say. But since he attended at least one USCWF event, it's hard to see how he could have been totally unaware of the company he was keeping.