 Companies with names that may be only vaguely familiar to you are in the crosshairs of the Federal Trade Commission as part of the administration's work to try to drive down prescription drug prices. The FTC is releasing a report on what are called Pharmacy Benefit Managers, PBMs, CVS Caremark, Express Scripts, OptumRx. Now, they're not pharmacies, but they're in that chain. Marketplace's Kimberly Adams explains.