Interesting article on ARM loans from the Wall Street Journal.
http://online.wsj.com/news/articles/SB10001424052702303546204579439171591130740?mod=WSJ_RealEstate_RIGHTTopCarousel&mg=reno64-wsj&url=http%3A%2F%2Fonline.wsj.com%2Farticle%2FSB100014240527023035462045