The U.S. Secret Service has denied a report that an agent was forced to tackle a Chinese security official after he tried to detain the American military officer carrying the U.S. nuclear launch codes during President Donald Trump’s visit to Beijing in November. “FACT CHECK: Reports about Secret Service agents tackling a host nation official during the President’s trip to China in Nov 2017 are false,” the Secret Service tweeted Monday. On Sunday, Axios reported that a skirmish happened when Chinese security services tired to interfere with the U.S.