WASHINGTON (Reuters) - U.S. Secretary of State Mike Pompeo said on Tuesday the United States was not sending "mixed messages" on Huawei Technologies and he does not believe a U.S. blacklist of the Chinese telecommunications giant will block a trade deal with Beijing."I don't think there's a mixed message at all," Pompeo said in an interview with CNBC."The threat of having Chinese telecoms systems inside of American networks or inside of networks around the world presents an enormous risk, a..