Kiyama is basically the good guy here, so if the series would end with her going to prison and the whole GOVERNMENT EXPERIMENTING ON HUMANS business being ignored, it would be more then a little broken.
Anyways, nice ep, Misaka was pretty damn epic - her final fight gave me major Nanoha vibes, and that's always a good thing. Too bad she's only powerful when it's convenient for the plot, eh. Railgun is still dumb as fuck, but enjoyable nonetheless. Oh and this episode made think that Misaka X Saten(and Shirai x Uiharu) would be the superior pairings.