> When I read we spent $1B, I think about how I'm responsible for $3 of that. It doesn't matter considering the ~$117,550 of the national debt I'm responsible for. It palls compared to the $3,000 a year in interest towards the national debt I'm responsible for.

(Your share of overall defense spending is ~1,000x higher, of course.)

I wish political leaders would express it that way. And you need to include the time factor: $10/year for 10 years differs from $20 for a one-time event. And somehow figure in capital accumulation (as opposed to e.g., consumables) and depreciation. But there are clear, effective ways to communicate it: 'I propose each American spend an average of $80/year for 50 years on this fighter jet program'. 'This moon mission will cost everyone $5/year for 2 years.'

To nitpick a little, I think your math is off: There are 350 million Americans, but we need to exclude most children, elderly, etc.