My piece on Sacha Volman and Latin America's anticommunist left has finally last appeared in Diplomatic History 37, no. 5, November 2013. Since I submitted the piece a few years ago, I had the opportunity to do some additional research in the Dominican Republic, none of which would not substantially alter the piece or its argument. Nevertheless, I was able to confirm that Juan Bosch was fully aware that Volman represented a link to the CIA. And I was able to learn a bit more about Volman's life after Balaguer returned to power and his subsequent involvement in anti-Castro activities. Those details will get incorporated into some future work I have planned on the subject.
Update, August 2014: Ernesto Semán of the University of Richmond has a review of my article for H-DIPLO, here.