According to a recent New York Times op-ed piece by Robbie Barnett, the British government has essentially abandoned its historic recognition that "China's control over Tibet was limited to a condition once known as suzerainty, somewhat similar to administering a protectorate." Barnett argues that the catalyst for this change is financial and may have bearing on India's claims in the northeast territories that currently border China.
This all comes amidst a wave of pessimism, within the younger generations of Tibetan exiles, for the efficacy of the Dalai Lama's "middle way" approach. Edward Wong highlights this in a recent series of articles for the New York Times. Also worth noting is Pankaj Mishra's 2005 article on some of the Tibetans involved in the "new strategy."