None of what is in this article is really the problem. The problem is how these asset classes were rated, especially when they started mixing high risk loans into everything. The ratings were complete B.S. This is what led to the housing crisis a while back. If the likes of Fredddie Mac were doing their due diligence with properly rated securities and not just buying everything and then selling to investors as a supposedly safe investment then it wouldn't be a problem. But with the government stepping in and insuring everything plus bailing them out when even that's not enough...that really screws up the market encouraging people to take out loans they have no business taking out. It just snowballs from there.