The Largest Killer in the Last Century

I'll give you a hint, it isn't war. 

http://www.hawaii.edu/powerkills/WSJ.ART.HTM

>>1 Could it be... KA-GASP! IT *IS* BIG GOV! Well, as long as the peeps are capable of self-sustenance. It appears that lower IQ grades are bad for society to a very high degree; scroll down on this one.     http://en.wikipedia.org/wiki/IQ