In his recent memoir, Keeping At It, Paul Volcker gave me greater perspective on the trials and tribulations of leading the US Federal Reserve and pursuing public policy. That's hardly a surprise. Few public servants over the last several generations can rival Volcker's breadth of experience or knowledge. After all, this is the man who stared down the stagflation of the late 1970s and ushered in the so-called "Volcker recession." He doubled interest rates to put the squeeze on runaway inflation, thus laying the foundation for the last four decades of price stability -