The BBC has a couple of explanations, first this video: https://www.bbc.com/news...

		stevekemp on June 12, 2019 \| parent \| context \| favorite \| on: Hong Kong Police Fire Tear Gas, Rubber Bullets at ... The BBC has a couple of explanations, first this video: https://www.bbc.com/news/av/world-asia-china-48599658/hong-k... Secondly if you prefer a written summary: https://www.bbc.com/news/world-asia-china-47810723