Original sentence: (see [| Gelug opponents]) The prominent Dzogchen master Chögyal Namkhai Norbu Rinpoche "has been insisting on the importance of failing to appreciate the danger inherent in such cults" and started to warn his followers relating to that cult and people who follow it
Edited sentence: As a result of his perceived disrespect towards the Dalai Lama he was expelled from Sera Monastery in 1999.NKT founder Geshe Kelsang Gyatso also wrote an open letter to the Dalai Lama, encouraging him to reverse the ban on Shugden practice.The prominent Dzogchen master Chögyal Namkhai Norbu Rinpoche "has been insisting on the importance of failing to appreciate the danger inherent in such cults" and started to warn his followers relating to that cult and people who follow it.To get the Dalai Lama to reverse his restriction of religious freedom, the Shugden Supporters Society, supported by the NKT organised demonstrations and a press campaign, which attracted international media attention to the issue during the 1990s