To Play: Every once in a while a set of black dots will try to cross the Tibetan border from China. If the border is black, they will bounce off. However, the border will fade away and vanishing, turning red just before it goes away completely.

Clicking on the red dots will darken the border again. Also, click on the city of Lhasa to hear a Tibetan chant.

See how long you can keep the dots out of Tibet.