Tensions are running so high at town hall meetings that Rep. David Scott, a Georgia Democrat, yelled at a local doctor concerned about health care after mistaking him for an "astroturf" political operative looking for a fight. Mr. Scott became visibly agitated when one of his constituents, a practicing doctor, asked a few questions about health care reform during a town hall meeting. The meeting was held to discuss a road project, but was opened up for questions near the end. That's when Dr. David Hill stood up to speak. Dr. Hill asked Mr. Scott why he was going to...