By Numerian

The Federal Reserve, in announcing the results of this week's meeting of the Open Market Committee, surprised the market by revealing it will begin purchasing US Treasury notes and bonds with the principal income it receives from its vast holdings of Fannie Mae and Freddie Mac mortgage securities. This practice - wherein the Fed buys up US government securities and injects cash into the public market as payment for these securities - is a form of monetizing the debt.

The last time the Fed did this on a big scale was back in the 1960s when it attempted to mop up the excess Treasury securities that were flooding the market as a result of Lyndon Johnson's efforts to finance the Vietnam War. That Fed program was viewed at the time as a failure, since the cash the Fed put back into the economy in exchange for the securities was a big reason - perhaps the major reason - why price inflation accelerated from the late 1960s until a decade later, when Paul Volcker managed to squelch inflation once and for all with forbiddingly high interest rates.

Fraught with risk