In my older kid classes, I pitted them debate style. I write:
"Beijing 2008. As we all know, the 2008 Olympic Games sit ready to be a great source of foreign revenue for China. However, August 2008 has proven to be the hardest month in China's Open recorded history to obtain visas as a foreigner. Team 1 will defend Chinese visa policy: it should be difficult to obtain a visa. Team 2 will defend the foreigner..."
Then I sit back, and let the class teach itself...