Amazing graph of Federal budget spending!
Here's an amazingly thorough and well-researched visual representation of how the US federal government spends our income taxes. It shows both the amount spent on each item, and also the percentage change from last year so as to spot budgetary trends. This is one time where the Web doesn't do justice to this fine visual tool, so I'd recommend buying one for your library (note: FGI is in no way connected to Jesse Bachman, the creator, nor will we in any way benefit monetarily from its sale!). You also send one to your congressional representative for 10 bucks!