While extending the payroll tax cut through the end of last year, members of Congress last fall took what many feel was a long overdue whack at the cost of their retirement plan. They bumped up the rate at which federal employees contribute to their pension plan, saving an estimated $15 billion over the next 11 years.

They also made sure that none of the increase applied to themselves. Anyone in service before the law went into effect would pay into the pension plan at the old rate.