Tibet Flags in Times Square

Yesterday I emerged from the Manhattan subways in Times Square in time to see a big "Free Tibet" march on 42nd Street. There were monks, ethnic Tibetans, and native New Yorkers of all forms. My daughter took these two photos of the march with her camera phone. You can't see it in the photos, but the march stretched for several blocks.

If anyone knows specifically which group organized the march, let me know.