Still a little unclear how house flipping and sub-prime mortgages are linked to the Lehmann Brothers bankruptcy and Collateralized Debt Obligations? WallStats.com offers “A Visual Guide to the Financial Crisis,” showing how low interest rates, the longstanding belief that housing values don’t decrease, and media hype — not to mention strikingly off-base quotes about the strength of the housing market by leading figures — lead us to today’s economic meltdown.