"Greenspin's other comments about keeping Fed Rates low (January 2004) set the stage for financial markets to look for new places of investment. The US mortgage market, given its history, was considered one of the safest places to invest after Treasury Bills. Tons of mortgages to be written by whoever in a market that was supposedly self-regualated, rating agencies that guaranteed the security of the investments, and the perfect Wall Street storm grew after the warning signs of Keystone and Superior."

should include this:

Greenspin's other comments about keeping Fed Rates low (January 2004) set the stage for "global" financial markets to look for new places of investment. The US mortgage market, given its history, was considered one of the safest places to invest after Treasury Bills. Tons of mortgages to be written by whoever in a market that was supposedly self-regulated, rating agencies that guaranteed the security of the investments, and the perfect Wall Street storm grew after the warning signs of Keystone and Superior. Internationally, $billion came to the new Wall Street securities market chasing mortgages."