One of the big problems facing airports is the continued use of "absolutely insane" post-9/11 passenger screenings, according to the CityJet founder.
Pat Byrne, founder and chair of Irish airline CityJet, was speaking after over 1,000 passengers missed their flights at Dublin Airport last weekend, after queues formed outside the terminals due to a lack of available security workers.
Mr Byrne told Newstalk that the nature of screenings, which includes removing belts, needs to change.