When costs "spiral upward" for welfare programs the Democrats and their Republican collaborators just keep adding more money to the program. These welfare programs never seen to get canceled. They can't even cancel funds for Planned Parenthood. When was the last time a welfare program was canceled and not replaced with something else?
One reason the B-2’s costs spiraled upwards was that the Congress kept cutting the numbers that were supposed to be bought. That meant that economies of scale were lost and the R&D costs for the entire program were spread over 21 aircraft rather than nearly 200.