Last week the Massachusetts Supreme Court issued a decision voiding several home foreclosures by U.S. Bancorp and Wells Fargo. The news caused the financial markets to retreat with bank stocks down hard. News reports and some analysts are predicting that the decision in U.S. Bank National Association vs. Antonio Ibanez, will mean an apocalypse for commercial banks, especially those involved in issuing residential mortgage backed securities or “RMBS.” But like most things in life, the reality is a little more subtle.