THE EVIL POTENTIAL OF GOOGLE:   The behemoth Google’s motto is “Don’t be evil.”  But what would happen if such a powerful search engine subtly and imperceptibly manipulated the results of searches for information about political candidates, in an attempt to influence public perception?  Psychologist Robert Epstein’s research on this possibility isn’t making Google happy.  And given that Google was the 3d largest donor to the 2012 Obama campaign, I think we’d be well advised to take seriously the temptation to mix internet search engines with politics