I'm old enough to remember when airplanes had smoking sections. Of course that wasn't much of a solution to the problem of second-hand smoke, but at least they tried. In those days there were also phone booths on nearly every corner and in the lobbies of hotels and movie theaters.
Maybe people who insist on yakking during flights could be segregated or forced to use a phone booth in the back of the plane. Of course, it would be much better if we could all be a bit civilized and work it out like adults, but given the record of the traveling public, I'm not optimistic.
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