Colombian drug lords, bored with Uncle Sam's hectoring, assassinate the head of the FBI. The message is clear: bug off! At what point do these druggies threaten national security? When can a nation act against its enemie...Colombian drug lords, bored with Uncle Sam's hectoring, assassinate the head of the FBI. The message is clear: bug off! At what point do these druggies threaten national security? When can a nation act against its enemies?