answering xeno's post later.
@justinian
"1. Government spending"
"2. Lowering taxes"
If you want to increase government spending and lower taxes you either have to borrow, this is simply paying taxes in the long run or either print it, which is a form of tax as well.
Keynesian was a good solution to 30' crisis, where the economy was healthy, and there was a psychological problem. When nobody has seen the alternative,like no new deal or WW2, its easy to cry disaster. Its UNPROVEN! Here's a view nobody shares, but I.m.o. WW2 only caused troubles to the econ. Without WW2, and people accepting anything just to put food on the shelf, econ would have skyrocketed. They would have had all the resources and used it instead of wasted it on weapons.
Let me be clear however, WW2 was a war that had to be fought, and I'm glad the allies did so.
Keynesian was an excuse for European politicians (and Obama) to increase spending while they shouldn't. Politicians think short term, and simply want to enrich themselves and their friends.