Periodic report on the national emergency with respect to significant narcotics traffickers centered in Colombia : message from the President of the United States transmitting a six month periodic report on the national emergency with respect to significant narcotics traffickers centered in Colombia that was declared in Executive Order 12978 of October 21, 1995, pursuant to 50 U.S.C. 1641(c) and 50 U.S.C. 1703(c).