It was released by the Chinese against their own people to stifle the growing freedom movement in Hong Kong. Don’t forget; Chairman Mao said that he didn’t care if 150,000,000 Chinese died in a nuclear war because that would leave more food for the rest of them to eat. And he did slaughter at least 75,000,000 of his own people. The leadership of that country has very little regard for the lives of its own people.