If you're heading to China, watch where you step. Last month it was escalators pulling people underground in China, with three separate accidents, including one that killed a mother after she managed to save her son. Now it's sinkholes, including one that swallowed five people yesterday at a bus stop. And this is just two weeks after an entire street collapsed in Dongguan China, pulling over 3,000 square feet down below street level and killing at least one person.