The only winner to emerge from the "Weinergate" scandal is Twitter, which once again paraded its effectiveness at everything from bringing down dictators to engaging in political self-immolation. Twitter is truly a double-edged sword. It can be used for good things like facilitating communication after natural disasters, or it can facilitate disaster itself by amplifying the effects of poor human judgment. In the time it took to make a single stroke on a computer key and then lie about it, Anthony Weiner destroyed his credibility, damaged his marriage and his integrity, handed endless fodder to his political enemies and singlehandedly diverted attention from a huge number of truly important domestic and global issues, for example that the U.S. is spending $2 billion a week in Afghanistan while cutting desperately-needed programs and services here at home, or that an unprecedented three nuclear reactors experienced full meltdowns at Japan's Fukushima Daiichi nuclear power plant. The Weinergate scandal shows that a little salacious piece of information sent out on Twitter has the tremendous power to wipe far more important news off the media map -- a realization that itself has huge implications when it comes to controlling what people see and hear in the mass media.