http://en.wikipedia.org/wiki/Federal_Deposit_Insurance_Corpo...
Consumer liability for unauthorized transfers. The consumer has limited liability if reported expediently.
You should read up more closely on the FDIC regulation -- they don't just provide insurance.
http://www.fdic.gov/regulations/laws/rules/6500-3100.html#fd...
Also, a clever little loophole: if the bank goes insolvent paying their accounts back, you are then covered under FDIC insurance.
http://en.wikipedia.org/wiki/Federal_Deposit_Insurance_Corpo...