"You can't fight City Hall," we used to say, assuming we were living in a movie from the 1930s. Kidding aside, the old expression was for venting frustration at the odds of a lone citizen going up against bureaucrats who care more about filling out the proper forms than serving their communities. But what happens when City Hall goes up against Wall Street? Or in today's case, when Communist Chinese control freaks displease the millions of investors who participate in global stock markets? It's game over, man — game over! Feng Shixin isn't a name I'd ever heard before today,...