<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Plato90s:
It would be interesting to see if airlines maintain a blacklist of people {snip} </font>
I am pretty sure that they do. An article about the Mik twins in the Anchorage Daily News quoted some muckety-muck at NW as having said something to the effect of "them being on our list."
I'll see if I can dig up the actual link. No promises, though.