President Trump is rattling his saber against Colombian President Gustavo Petro to punish him for accusing the U.S. government of murdering Venezuelan fishermen. Trump has boasted of the killings by the U.S. military but claims all the targets were drug smugglers. Trump has threatened to suspend all U.S. government handouts for the Colombian government. Trump warned that Petro that he "better close up" cocaine production "or the United States will close them up for him, and it won't b...