...the GAO analysis of the net present value of the Social Security and Medicare promises Washington has made to Americans. “Net present value” means the total that would have to be set aside today to pay the costs of these programs in the future. The government puts these numbers in appendices, rather than in headlines. But the costs are real.
By the way, it's worse than that: the GAO analysis assumes that the "doc fix" will NOT be applied, meaning that Medicare assumptions are artificially low.