School shootings in the U.S. have spiked since the late 2010s. Based on a report from The Washington Post, more than 311,000 students have been exposed to gun violence since 1999. Why do schools become a frequent target? CGTN talks to Professor John Gong, vice president of research and strategy at the University of International Business and Economics in Israel. Gong said that the fundamental reason is that gun control is hard due to the powerful gun lobby and National Rifle Association.