I don't know the answer off the top of my head. Certainly we regularly condemn the FARC for a whole range of human rights abuses. I can't, off the top of my head, point to an instance of our doing so with respect to a labour leader. If it has happened, and we have confirmed and corroborated it, we would absolutely condemn it.
On May 6th, 2010. See this statement in context.