Line of March, the M-L group named by wags March In Line, one of whose leading figures was ex-Guardian editor, Irwin Silber, had a two part article in their party journal, I'll dig up on the Soviet intervention in Afghanistan. (Still worth looking at too, is their two parter on The Black Nation Thesis of the Comintern in '28 co-written by Bob Wing who went on to be an editor of Color Lines. (BTW, Max Elbaum another LoM figure has a forthcoming book from Verso on the New Communist movement grouplets of the 70's.)Much material, of a mixed polemical and analytical nature in those articles on intra-left opinion.)
The Guardian in NYC, was a good bellweather, in their coverage. See the microfilm collection by Honeywell of 60's and 70's underground press available in many libraries.
Another, btw, much embarrassing stuff in the two books by neo-con, Paul Hollander, "Political Pilgrims: Travels by Western Inellectuals to the Soviet Union, China, Cuba and Vietnam, " and, "Anti-Americanism." For example, the Joan Baez, "Open Letter to the Socialist Republic of Vietnam, " episode from '78, if memory serves, is related. Quite a ruckus. See letters to The Nation, at the time, and Liberation, the anarcho-pacifist magazine. Michael Pugliese