http://www.nytimes.com/2011/04/07/business/07trade.html?hp

The Obama administration said on Wednesday that
Colombia had agreed to do more to protect union leaders from assassination —
a move that the administration hopes will enable it to win Congressional passage
of a free trade pact with that country.

Senior administration officials hailed what they called an action plan in which
Colombia promised to expand its protection program for union leaders and to
enforce its labor laws more vigorously, in part by hiring 480 more labor
inspectors over four years.