If you’re wondering why all these supposedly smart people bought bullsh*t securities made up of pools of overpriced mortgages given to broke people with crap credit — it’s time for you to meet the rating agencies. Rating agencies are the folks who decide the “quality” of investments. They’re the ones who decided that these securities deserved a AAA (read: awesome) rating. Did they know that they were passing junk off as gold? Um, yeah, according to reports from Bloomberg and the New York Times. It looks like they sorta did.