Why is everyone freaking out about Credit Suisse?

Switzerland's second-largest bank has lost $4 Billion over the last three quarters. But Is Credit Suisse actually in danger? And if it collapsed, would it really be as bad as Lehman Brothers' catastrophic effect on the economy in 2008? Kevin T. Dugan explains what you need to know about the Credit Suisse drama and why a blow-up could rock the world's financial system.