I began to see motorcyclists who had attached computer discs to their back mudflaps, because they made good reflectors. In a place called Xingwuying, locals climbed the Great Wall whenever they wanted to receive a cell phone signal.

I began to see motorcyclists who had attached computer discs to their back mudflaps, because they made good reflectors. In a place called Xingwuying, locals climbed the Great Wall whenever they wanted to receive a cell phone signal.