http://www.huffingtonpost.com/dean-baker/iousa-failed-scare-...
Anyone who talks about future deficits and doesn't talk about healthcare costs isn't serious. Social Security will be more or less fine with some combination of tax increases and/or benefit reduction (i.e. raising retirement age). But this New Yorker piece makes clear that healthcare costs are skyrocketing - not because of Medicare or private insurance, but because doctors are going out of control, without any noticeable increase in quality of care: http://www.newyorker.com/reporting/2009/06/01/090601fa_fact_...
But there's nothing in it for Wall Street if we constrain healthcare costs, so Peterson will go back to shilling for Social Security privatization.
Also, I would be wary of any analysis of a situation as complex as US health care that lays blame 100pct on "out of control doctors."