16 bil is a drop in the bucket.
From
Wikipedia:
The military expenditure of the Department of Defence for 2004 was:
Total $437.111 Billion
Operations and maintenance $174.081 Bil.
Military Personnel $113.576 Bil.
Procurement $76.217 Bil.
Research & Development $60.756 Bil.
Military Construction $6.310 Bil.
Edit: Jesus, look at this graph comparing our military expendatures to other countries:
