The NRO and the NGA programs are going to be on a need to know basis, aren't they? That is, knowledge about what's going on is compartmentalized. This adds to the cost. I recall reading a reference (which I can't find now) that claimed a Top Secret program was 20% more costly than an open program. I remember feeling surprised, because my personal estimate was about double for anything Secret.

We can double NASA's budget, can NRO and NGA, and still come out ahead financially.