These two videos about the housing/mortgage/credit crisis are over a year old but still very effective: First: US Home prices adjusted for inflation plotted as a roller coaster.
Here's the graph from the video:
Next video: Irrational exuberance.
"Consensus is the business of politics. If it's consensus, it isn't science. If it's science, it isn't consensus. Period." Michael Crichton.
"Kyoto is essentially a socialist scheme to suck money out of wealth-producing nations." Stephen Harper.