They are running out of money for al of those things. The difference with Social Security is that the funding mechanism was set up with the program itself. This makes it obvious and somewhat predictable when it becomes insolvent as the money coming in won't match the outlays. It has been run by the same politician-children as most programs in that the people in charge can't fulfill their most basic responsibility of allocating limited resources. Instead they use the treasury as an unlimited payola scheme for their supporters and kick the can just a little farther down the road.