Students participate in "National School Walkout" to protest gun violence in U.S.

Students from Civic Leadership Academy rally to protest against gun violence at Times Square in New York, the United States, on March 14, 2018. Students participated in a nationwide demonstration against gun violence "National School Walkout" in the United States on Wednesday, one month after a high school shooting in Florida in which 17 people were killed. (Xinhua/Wang Ying)