frustrating than when an airline loses your luggage, especially when you are on your way to vacation and the idea is to unwind and you can't. >> watching it go round and round. your heart starts sinking. we ask how can this happen? abc's steve osunsami has the answer. >> reporter: craig duff traveling to cancun, mexico, but before he got to go swimming with the whale sharks. his airline lost his bags. he had to waste a day finding new gear and he had paid one of the hefty baggage fees. >> i was sort of imagining my bag had gone to the island of lost luggage. turned out it went to tijuana. which was pretty close. >> reporter: in chicago we met aaron hervitz wearing a suit after american airlines lost his bags. shout various airlines they mishandled the bright red bag four times since february. >> there is absolutely thing you can do about it. it is the most vulnerable feeling on the planet. >> reporter: nearly 23 million checked bags are lost every year. and the airlines could lose 637,000 bags this summer alone. and the problem is not all way