Was it Socrates who believed that better and clearer understanding alone suffices to get rid of all the evil? I parted with that belief for good only recently, specifically on November 3, 2004 at about 6 AM, but I started having my doubts in 1991, during the Persian Gulf War I and the yellow ribbon frenzy.
However, I also came to believe that - like with any bad things and risks in life - there is nothing than can be done to eradicate learned stupidity, manufactured ignorance and indifference, denials and delusions. There will always be a segment of the population that will fall for these vices. I am only wondering what is worse, the lies and delusions manufactured professionally, by the powers that be, or those supplied via black market when the officially supplied myths do not meet popular expectations anymore (as for example in the communist Eastern Europe).
But the learned stupidity and demand for delusions will always be there - I think they are, like cancer or Down syndrome, a naturally occurring dysfunction of human body. The best one can hope for is to reduce the incidence and impact of these dysfunctions - and that brings us to institutions building. In other words, the best we can hope is to create institutions that isolate learned stupidity and neutralize its impact on society at large.
Wojtek