Know what's even better than waiting 2 hours to get through security at the airport? Waiting 2 hours to get through security, having a turbulence-filled flight a row in front of a crying baby and kicking toddler, waiting 45 minutes at the baggage claim, and then another 30 at customer service because some spaced out / ignorant / thieving a-hole walked off with your suitcase.
I don't know what the TSA is to be done about the lines, but for the other miseries I recommend: 1) someone starting an airline exclusively for passengers 18 and up; and 2) Inventive Travelware luggage tags.
Inventive Travelware's clever and firm-but-gentle reminders almost guarantee other people will not confuse your bag with theirs. And should they somehow miss the big, bold witticisms and start to walk off anyway, the luggage tags' choice of ultra-bright colors are loud enough that you should be able to spot them heading off in the wrong hands in time to catch up with the offender. Body slam him if you go with the "Don't make me chase you" tag and the idiot still picks it up.
Tags are made of acrylic and have a clear window on the back with removable ID information card. They measure 4.25" x 2.25".