Retirement Plan Detectives A couple become Retirement Plan Detectives, searching records from old employers. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content What Is a Roth 401(k)? Roth 401(k) plans combine features of traditional 401(k) plans with those of a Roth IRA. Avoiding Cognitive Decline Try these activities to keep your brain sharp. Split Annuity Strategy Here's one strategy that combines two different annuities to generate income and rebuild principal.