I have a strong opinion about the political aspects of this that I won't get into due to the forum rules.
On the practical side of things, though, I will say that the airlines, airports, and government folks really need to work on making the process more efficient. I should not have to allocate two hours to being in the airport to ensure that I will not miss my flight because a school field trip is ahead of me in the security line. I hope these new scanning devices improve the process so we can get back to the days when I could arrive at most airports 20 minutes before a flight and not have to run.
Airports are stressful for travelers now, too. Remember when most people worried that they might forget to take their watch off or put their car keys in the tray when they stepped through the metal detector? Man, what a silly thing to worry about. "Sorry, sir, check your pockets and step through again." Now, most people you see in line who are not frequent travelers are worried about being randomly selected for an embarrassing search. That's no way to start your vacation. The whole atmosphere of the airport has changed in the past ten years due to this security paranoia. What a shame that is.
I hope the airlines figure out how to improve these things. I have not traveled by air (except for work) in years, and I won't do so again until they earn my money by making the process less aggravating. There are plenty of nice vacation spots within a day's drive.
Besides, I can smoke in my truck. Remember when they let you smoke on the planes? Man, those were the days!