Original sentence: Between the 1960s and 1980s, many prisoners (over 1 million, according to Harry Wu) were sent to laogai camps in Amdo (Qinghai), where they were then employed locally after release.The government of Tibet claims that millions of Chinese immigrants to the TAR are diluting the Tibetans both culturally and through intermarriage; although there have been recent attempts to restore the appearance of original Tibetan culture to attract tourism, the outlook for the traditional Tibetan way of life, already decimated, is not good.The government of the PRC rejects these claims, pointing to rights enjoyed by the Tibetan language in education and in courts, as well as public infrastructure projects aimed at improving the lives of Tibetans.The number of military and civilian Tibetans that have died in the Great Leap Forward, violence, or other unnatural causes since 1950 is often quoted at approximately 1.2 million
Edited sentence: Although there have been recent attempts to restore the appearance of original Tibetan culture to attract tourism, the outlook for the traditional Tibetan way of life, already decimated, is not good.Millions of Chinese immigrants to the TAR are diluting the Tibetans both culturally and through intermarriage.The number of military and civilian Tibetans that have died since 1950, the date cited for China's "invasion" of Tibet, is often quoted at approximately 1.2 million