I want to take a tour soon to China - Beijing/Shanhai/Xian/Yangtze River Cruise - and have been put off by the news reports I've seen recently about the terrible pollution conditions there. Anyone been there recently and have any thoughts on this? I've seen news reports of people getting sick, airports closing, and bleak looking cities covered with smog. How did this affect your vacation? Should I wait until the government cleans it up? Did you experience any physical effects of the pollution? Would you go back in the next 6 months?