Zillow: U.S. default would see mortgage rates top 8%, home sales plummet, and the housing market slip back into a 'deep freeze'
If the U.S. defaults, Zillow says, mortgage rates could reach 8.4% by September.
Tomas Kauer - Moderator 
If the U.S. defaults, Zillow says, mortgage rates could reach 8.4% by September.
