There used to be a time when personal dress on airlines was of a "sunday-church" type occasion, nowadays every type of 'casual' dress is seen, the last time I flew on airlines was 3 years ago, I could'nt believe what I was seeing as far as passengers were wearing, bathing suits, daisy-duke shorts, open-toed sandals etc..(that was from L.A. to Phoenix.)
Maybe this lady had her legs wide open, so that everyone could see her private part. Maybe someone complained that there kids were staring or something of that nature.
Video - Breaking News Videos from CNN.com
Or maybe they thought she was a hooker.