Black jazz legends were sent abroad as part of a State Department diplomatic push even while segregation continued back home.
Rebiya Kadeer is a petite, successful businesswoman, who now lives in exile in Virgina.
But the issues they raised are longstanding, going back to China's "strike hard" policy against the mainly Muslim minority – a policy that was strengthened by US cooperation following 9/11.
Leaders agreed that warming must be stopped, but few specifics were reached on how to reduce greenhouse-gas emissions.
The global recession has helped reduce aid from wealth nations – even as it pushes millions more into poverty.
Beijing's severe treatment of Uighurs – and Tibetans, too – may be an attempt to prevent a breakup similar to that of the Soviet Union.