"Credit Suisse says that by 2006, 49% of all mortgage originations in the United States were liars loans. The lowest incidents of fraud is 50% and that’s when the fraud fraudsters study it themselves. When independent folks study it, it’s in the 80 to 90% range."
Also did you know that the FBI warned about a mortgage fraud epidemic in September 2004? FBI warns of mortgage fraud 'epidemic' (CNN). Lisa Epstein is featured first in the video clip.