Barney,
Yep, I agree, they should just take him aside out of public view. No reason to track him to the airplane. Figure out what's going on immediately.
Is TSA a pain? Sure. But do you think it's worth a couple of false alarms to find somebody who really is drunk? You betcha. I would rather TSA not be afraid to question somebody then to just let everyone through because they're wearing a badge. I KNOW that after reading this news report everyone will think twice before having that late night drink vice if this guy hadn't got caught, or if TSA were not Nazis. It is, after all, about public safety.
Lowcure is right (did I just say that?). IF the guy is guilty then get him some help because he needs it if he made this kind of decision. We've all been stupid, but come on. I would hope we at least grow out of the peer pressure mindset of needing to drink past our limits, especially when we have a family to think about.
Be safe and party smart!