An example of why not all AAA debt is truly AAA grade: "As it turned out, triple-A-rated mortgage bonds stuffed with bad subprime mortgages were considered ver

An example of why not all AAA debt is truly AAA grade: "As it turned out, triple-A-rated mortgage bonds stuffed with bad subprime mortgages were considered very low risk" Source: http://www.nytimes.com/2011/07/10/magazine/sheila-bairs-exit-interview.html?partner=rss&emc=rss&pagewanted=all http://www.nytimes.com/2011/07/10/magazine/sheila-bairs-exit...