Would it concern you if the Fed caused the Great Depression?

This one was posted by me in another thread, but I feel this needs its own thread, so I'm re-posting it here so it can be properly discussed:

Here is Federal Reserve Chairman Ben Bernanke's exact quote from his speech given at Milton Friedman's 90th birthday party in the year 2002:

"Let me end my talk by abusing slightly my status as an official representative of the Federal Reserve. I would like to say to Milton and Anna [Schwartz, Friedman's coauthor]: Regarding the Great Depression…