Overseas Network June 8 th On the 7 th, local time, US Attorney General William Barr said in an interview with CBS that in the protest demonstration near the White House on June 1, the pepper balls used by the police to disperse the crowd were "not chemical irritants". His statement not only contradicts the instructions listed by the US Centers for Disease Control and Prevention, but also the US media found that even the companies that produced these riot products advertised that their products contained "the most effective chemical irritants".According to the US "Business Insider" website, Barr claimed in an interview that the police only used pepper spray and pepper balls with pepper spray, which was not a chemical irritant. Trump and other officials also said earlier that the police did not use tear gas that day. However, according to the information of CDC, pepper spray itself is a kind of tear gas, and the substances used in riot control, including pepper spray, "are all compounds that can temporarily limit the mobility by causing irritation to the eyes, mouth, throat, lungs and skin".In addition, PepperBall, a company that produces pepper balls, wrote in the publicity that their products contain "the most effective chemical irritants". The official website wrote that the substance in the product is "a patented chemical irritant, which has been proved to be more effective". It is understood that this pepper ball will explode when it comes into contact and give off a choking chemical gas.Official website also wrote: "Our products are so effective that the word' pepper ball' can already refer to any non-lethal shooting stimulant." The US media report pointed out that in 2018, the company received an order worth $650,000 from the US Army, sold pepper balls and launchers to each other, and the US military was used to control threatening targets when performing tasks in Afghanistan.Earlier reports said that on the 1st local time, law enforcement officers used riot gear to disperse the protesters near the White House, so that Trump could cross the street to take photos at St. John's Church, and it was Barr who ordered the "clearance" at that time. After that, the White House was criticized by many parties, but Barr chose to defend the police's behavior in this interview, and said that the purpose of dispersing the crowd was to enable law enforcement officers to establish a wider range of security lines.However, CNN reported that the spokesman of the park police who was in charge of the task on that day had admitted last week that tear gas should not have been denied before, but this statement was quickly denied again by the acting head of the department. Barr in this interview not only gave a denial answer, but also said that the protesters outside the White House had violent behavior that day. CNN said that Barr's remarks were aimed at getting himself out of the controversy of ordering the crowd to disperse as soon as possible. (Overseas network Zhao Jianxing)