According to BBC News, tent cities are now springing up outside of Los Angeles- filled with victims of the subprime crisis:

 

Certainly these are people who have been hit by economic woes, but from the interviews, it sounds more like unemployment, not foreclosure, is the real culprit.  The fully employed can rent.

I would not be one to trivialize the difficult problems faced by these individuals, but let’s not paint this as a "subprime" or "foreclosure" problem.  Had these people formerly been renters, [and it wouldn't be surprising if many of them had been] their situation would be the same. 

There are those who would use this story as "proof" that the government needs to do more to fight the rising tide of foreclosures.  A mortgage is of no use to anyone without a job. The government needs to reconsider its priorities.