U.S. President Donald Trump (C) participates in a signing ceremony for the "Permanent Authorization of the September 11th Victim Compensation Fund Act" at the White House in Washington D.C., the United States, on July 29, 2019. U.S. President Donald Trump on Monday signed into law a bill that extends funding for victims of the Sept. 11 terror attacks. (Photo by Ting Shen/Xinhua)