No amount of resources can guarantee that a CCP will be able to meet its payment and settlement obligations, unless those resources can be converted to cash with certainty and within a very short time frame.
Most observers expect Social Security, under existing law, to be in chronic deficit over the long haul; however, the program is largely defined benefit, and so the scale of the necessary adjustments is limited. The shortfalls in the Medicare program, however, will almost surely be much larger and much more difficult to eliminate.