A carbon tax is not most people's first choice (except among economists). Fear of the "tax" label was surely one reason why policymakers pursued "capandtrade" in their initial efforts to address greenhouse gas pollution. Many environmentalists are not as confident as economists that businesses and households would change their behavior sufficiently under a tax to make a difference; they prefer the certainty about the amount of emissions reductions that a cap seems to provide."It came up from people we know and people we don't know," said Haslam, who built his fortune with Pilot Flying J truck stops. "Joe and I have spent a lot of time together over the last two or three months and have really come to know each other very well. I come from the business world and I have hired a lot of senior executives and I can look everybody in the room in the eye and I can say I've spent more time with this senior executive, making sure he was the right fit for t