There is currently a "We the People" petition up on the White House site to increase the US government's use of free and open source software as a cost cutting measure. It's dangerously low on signatures right now, but you have until the end of the month to add your name to the count.
While this would certainly cut government spending (at least, in the long run) we should also be aiming to get more secure, stable, and transparent software in all branches of government. I think in this case, cost is a secondary issue.
http://www.thepowerbase.com/2012/02/...free-software/
