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Airlines continually struggle with the idea of charging overweight passengers extra for their fare - it seems logical but then it is very difficult to implement.

"Spatial Profiling" is when airlines or for that matter any other industry, company, entity, individual discriminates someone on the basis of their weight.
The obese passenger was a victim of "spatial profiling" when she had to buy an extra ticket because of her weight.
by Jay "Jammer" January 21, 2010