The baby boomer generation is headed for a shock as it hits retirement: many of them will be long on life expectancy but short on savings. The two main strategies for funding retirement -- lifetime pensions and 401(k)-style savings plans -- are in serious trouble. In "Can You Afford to Retire?" FRONTLINE correspondent Hedrick Smith ("Is Wal-Mart Good for America?") investigates this looming financial crisis and the outlook for middle-class Americans.