Who Is To Blame For The United State's High Level of National Debt?

There is plenty of blame to go around for our present debt situation:

1. Under Bush, we cut taxes and started 2 wars - and Obama continued this while
adding another 1/2 war (air strikes on Libya). During WWII, the folks at home made sacrifices, such as rationing, etc. that made them feel connected to the war effort. While we no longer need rationing, we should have ended the tax breaks after 911 - when we went to war.

2. The bottom line cause of the financial crisis was Greenspan pumping too much money trying to lessen the effects of the dot com crash. Booms and busts are a natural cycle in capitalism, and we keep trying to use the government to smooth out the down cycles.

3. Finally, we have had historically low interest rates for the last few years. While responsible homeowners locked in low, fixed rate 30 year mortgages, the government is still mostly stuck with short term debt. We should have been issuing less short term bonds and lots of 20, 30, and even 50 year bonds.