A woman touches names of the 9/11 attacks' victims inscribed on the Empty Sky memorial at Liberty State Park in Jersey City of New Jersey, the United States, on Sept. 11, 2020. People on Friday commemorated the 19th anniversary of the 9/11 attacks, which left nearly 3,000 killed or missing, and were the largest terrorist attacks on U.S. soil in history. (Xinhua/Wang Ying)