The TSA is definitely the worst innovation of the last 20 years. Additional to that, lost luggage, missed or delayed flights, expensive changes - and I will still happily get on a plane without a second thought whereas I may have abandoned some other industry over far less. The ability to fly is truly miraculous. For $500 or less I can travel most of the way across two continents at non-peak times, and for about a grand I can cover most of the globe. Even poor people can scrape together that kind of money every once in a while.