The ground is shaking. The buildings are swaying. Now, you have to wonder how many of them will come tumbling down. I'm talking about the major financial institutions in this country. The tremors in the mortgage market that first started rumbling a year ago have escalated. And now they're ripping through the industry with the force of a 9.0 earthquake ... It's no longer just mortgages that are shaking the biggest banks, brokers, and insurance firms. Auto loans, credit cards, commercial real estate, credit derivatives, and construction and development loans are setting off their own temblors. Still ... Fannie Mae and Freddie Mac Are the Epicenter of this Crisis By far, the biggest problem out there right now is the government sponsored enterprises, or GSEs. For a while, Fannie ...