http://www.newstarget.com/z019659.html You can download the article from the St. Louis FED that the above link is based on. http://research.stlouisfed.org/publications/review/06/07/Kotlikoff.pdf
The fact that the US has promised more then it can deliver is nothing new. Greenspan talked about that during his bi-annual congressional testimony years ago.
I think soniqhost Gtech, Mia, Will.Spencer and a few other fall under this description: "The American people, as usual, remain oblivious to the financial future that awaits them. Even as the housing bubble is now beginning to burst in the nation's most overpriced real estate markets, most people don't have a clue what "hard times" really means. To today's debt-ridden yuppie spenders, "hard times" means shuffling six different credit card accounts to cover the payments on an overpriced house, two new SUVs in the driveway and a vacation to Paris, none of which the yuppie couple can afford."