Very long queues, whether at the various checkpoints, in front of the baggage claim carousels or even in the various airport shops and restaurants, delayed or even canceled flights: the airline industry is expecting a very eventful summer in Europe . In question ? A lack of staff announced everywhere in the various airports of the Old Continent. “Many of our partners – airports, air traffic control, catering – are facing major staff shortages”, explained ten days ago Carsten Spohr, the boss of the Lufthansa group, the parent company of Brussels Airlines.