President Barack Obama held a town hall meeting with Chinese students in Shanghai on his much anticipated trip to China. Though the conditions of the meeting were dictated byBeijing -- students' questions were pre-approved and the audience was a carefully selected batch of China's finest,most obedient,youth -- Obama managed to infuse some of his own message into the interaction. Throughout the exchangehe carefully broached subjects such as uncensored Internet access, freedom of religion and political participation. However, it was clear that any remarks the Obama administration had prepared for this encounter were calculated todiscuss sensitive topics without oversteppingclearly markedboundaries.