Without Comment
"The first and most effective line of defence against fraud and insolvency is counterparties' surveillance. For example, JPMorgan thoroughly scrutinises the balance sheet of Merrill Lynch before it lends. It does not look to the Securities and Exchange Commission to verify Merrill's solvency." -- Alan Greenspan, The Age of Turbulence: Adventures in a New World (New York: Penguin Press, 2007).
Now read John Kay on how Greenspan could have found a cure at the pharmacy.