"The Dalai Lama’s second-oldest brother, Gyalo Thondup,
helped the C.I.A. train Tibetan guerrillas in Colorado,
among other places, and parachute them back into Tibet."
There are a couple books about it. The other place they trained them was in Ithaca, which is why there is still a big tibetan community there and that's where the Dalai Lama's summer home is. It's a pretty crazy story though; iirc after China found out about the program the CIA just disowned them rather than helping to further support or extract them, and just left them all over there to die.
My grandparents were generals in the Chinese military. When my parents and their siblings came to the US for grad school, they were all approached by the CIA.
The whole history of Tibet and the Sino-Tibetan war is quite interesting. Of course, its not in the interest of the 'free Tibet' crowd to actually learn that Tibet was a feudal kingdom with a history of warfare (more Dalai Lamas were murdered than died from natural causes), and that the Lamas were highly oppressive of the serfs...