Bottom line: BAC is probably liable for putbacks that could total over a hundred billion.

FORBES: These Bankers Knew What They Were Selling

We want some color on the mortgage putbacks and litigation surrounding that.

FORBES: 2 Most Important Company Earnings This Week

Then there is the free-rider problem: the cost of litigation falls on those that sue, but the proceeds from putbacks flow to all investors.

ECONOMIST: Banks are under assault from buyers of mortgage securities

Lower credit costs, continuing reserve releases and a decline in delinquicies will help boost revenues industry-wide, but looming questions about mortgage putbacks, foreclosures, depleting revenues from debit card fees and regulatory costs are still concerns.

FORBES: Sector Outlook

Those putbacks could save us a lot.

FORBES: These Bankers Knew What They Were Selling