some are more subtle than others, take this one for example:
http://news.bbc.co.uk/1/hi/scotland/...st/7476112.stm

Security consultant Chris Yates said many of the changes put in place at Glasgow had been copied at other airports around the world.

But he said that although some "weak points" in airport security had been addressed, others remained.
Security consultant Chris Yates who runs an international security consultancy,
http://www.yatesconsulting.co.uk/Home.html

Maybe someone over estimated the market and needs to quickly drum up some business