Travel expert Gary Leff on the billions in wasted time spent at airports: Maybe the biggest failure in air travel is something we don’t talk about at all. How is it possible that people are being told to show up at the airport 2.5 to 3 hours before their flight, and that isn’t considered a failure of massive proportions? As Gary points out airport delay wipes out many technological advancements: The lengthened times for showing up at the airport mean that it no longer even makes sense for many p...