I want to know the answer to the following question:
What agency failed to stem the tide of toxic mortgages contributing to the financial crisis of 2007?
All the background I'm provided with is that "It concluded that "the crisis was avoidable and was caused by: widespread failures in financial regulation, including the Federal Reserve’s failure to stem the tide of toxic mortgages; dramatic breakdowns in corporate governance including too many financial firms acting recklessly and taking on too much risk; an explosive mix of excessive borrowing and risk by households and Wall Street that put the financial system on a collision course with crisis; key policy makers ill prepared for the crisis, lacking a full understanding of the financial system they oversaw; and systemic breaches in accountability and ethics at all levels".". Is that enough to answer the question?
Answer: yes