As housing prices have plummeted over the last several years, an increasing number of U.S. homeowners have suddenly found themselves with home loans that are much larger than what their homes are now worth.  So a large number of them have opted for what is known as a "strategic default" - they have simply walked away from their homes and have let the banks take them back.  Many Americans simply decided that it was not a part of their "American Dream" to pay off a loan that is for two to three times what a house is actually worth.  Over the last several years, strategic defaults have enabled more than a million Americans to get out from under crippling mortgages.  But now, Fannie Mae has announced a massive nationwide crackdown on strategic defaults.  Fannie Mae says that it will be closely examining the mortgage data to determine who is strategically defaulting and who is not, and they are going to be "going after" those who they believe have committed strategic defaults.  (Read More.....)