The US blogosphere is in a lather over a video of US Sen. Bob Ethridge (D-NC), looking tired and emotional, grabbing a student who tried to question him on a DC sidewalk. Glenn Greenwald wants the Senator charged with assault. Lest we be too smug, remember how then-Prime Minister Jean Chretien, apparently sober, throttled Emploment Insurance protester Bill Clennett at a Flag Day rally in 1996, throwing him to the ground and breaking one of his teeth. A third party did lay a charge of assault against Chretien, but the Attorney General of Quebec declined to proceed with the case....