Under Chinese rule, Tibet cannot live freely. With China ruling and taking over Tibet gradually, China is in control and unfairly not letting Tibet be free.
News article: Tibetans wounded as Chinese police fire on Tibet protests –
http://www.timesonline.co.uk/tol/news/world/asia/article3694762.ece
Tibet is constantly under attack by China. Also, people who disagree with China are also often injured or attacked.