A program sends students from top Chinese universities into impoverished areas to coach poorly educated students, hoping to give them a stake in China's future.
China's foreign minister will visit Washington today amid tension over Tibet and a US-China naval clash in the South China Sea.
China says keep out; the leader fears the Tibet tinderbox will again catch fire.
Broad Internet controls have blocked YouTube and most chat rooms.
At Repkong monastery in central China, monks see more police.
The Olympics in China offer Tibetans a chance to draw world attention to human rights issues.