the leaves from the trees. In the War on Drugs , as part of Plan Colombia , the United States has been spraying the herbicide Roundup and Roundup Ultra over Colombian coca fields. [21] [22] [ edit ] References ^ http://www.rense.com/general11/chmmill.htm ^ http://www.csicop.org/si/2001-11/conspire.html ^ http://www.navarrone.com/contrails/chemtrails1.html ^ http://www.rense.com/general4/fre.htm ^ http://www.carnicom.com/contrails.htm ^ http://www.carnicom.com/flame1.htm