Jeff Williamson: How USPS ensures vitality of its workforce

Jeff Williamson, chief human resources officer, USPS

Mail goes nowhere without mail handlers and carriers. The Postal Service has hundred of thousands of such employees, in several unions. For many, it's a lifetime job. At headquarters, ensuring the vitality of this workforce falls to USPS Chief Human Resources Officer Jeff Williamson. He explains the scope of the work on Federal Drive with Tom Temin.