RADLEY BALKO: Police Overkill at the G20 Summit. “These are precisely the kinds of events where free speech and the freedom to protest is in most need of protection. Instead, the more high-profile the event, the more influential the players, and the more high-stakes the decision being made, the more determined police and political officials seem to be in making sure dissent is kept as far away from the decision makers as possible. Or silenced entirely. “