The airline is also looking at the possibility of introducing new computer software capable of compiling a passenger blacklist.
I hope they have software capable of this - it is simply a database; even works with paper - all they need to do is link their 'naughty boys' list with their booking software (which I hope they've updated, my brother sold them a computer a few years ago, and their backup was on punched cards) and to actually check who books seats. The other requirement is to enhance the list, both incorporating FBI/special branch suspects and people refused carriage with other carriers