One of globalexchange.org's directors (or the only director) is Susan Medea Benjamin. I vaguely recall some newspaper editorial or similar written by a young female college student, and it turned out she was also a member of globalexchange and had gone on one of their trips to Cuba, or something like that.
Here's what I was referring to:
http://www.townhall.com/columnists/johnleo/jl20020802.shtml
"On his site, The Politburo, blogger Michael Moynihan noted that the Times' source for the toll of 812 dead was Marla Ruzicka, identified as a field worker in Afghanistan for Global Exchange, "an American organization." What the Times didn't say, Moynihan wrote, is that Global Exchange is a "far-left" group that opposes globalization and the U.S. military. Ruzicka, he said, is a fan of Fidel Castro's Cuba and the winner of an award from "the Marxist group Refuse and Resist."