Air tickets to be based on a passenger's weight???

If swimsuit season hasn't gotten you exercising, maybe this will: Some airline-industry analysts predict that the cost of flying eventually could depend on your weight. 

It's likely, they say, because of simple physics: The more weight you bring on the plane, the more fuel is needed to get you to your destination. And when fuel prices rise again, it might be time to hit the gym. 

Robert Mann, an industry analyst and consultant in Port Washington, N.Y., envisions passengers being charged based on body and baggage weight, rather than simply by the seat. More...

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