Venture capitalist Nick Hanauer, with Elise Gould, argues that a robust economy relies on large numbers of innovators and affluent consumers — and that too much inequality prevents too many Americans from joining those groups. Samuel LaHoz/Intelligence Squared U.S. hide caption

itoggle caption Samuel LaHoz/Intelligence Squared U.S.

A photo taken Sunday of Kaci Hickox in an isolation tent at University Hospital in Newark, N.J. Hickox, who was later discharged and allowed to return to her home in Maine, says she has no intention of abiding by a "voluntary" quarantine there. Steven Hyman/AP hide caption

itoggle caption Steven Hyman/AP

Ebola patient Amber Vinson arrived by ambulance at Emory University Hospital on Oct. 15. Now healthy, Vinson was discharged from the hospital Tuesday. Kevin C. Cox/Getty Images hide caption

itoggle caption Kevin C. Cox/Getty Images

In the aftermath of Superstorm Sandy, a former Red Cross official says, as many as 40 percent of the organization's emergency vehicles were assigned for public relations purposes. This photo, which shows one of the trucks in Long Island, N.Y., in January 2013, is one example of the many publicity photos taken by the Red Cross. Les Stone/American Red Cross hide caption

itoggle caption Les Stone/American Red Cross

Vincent Flewellen leads a lesson on Ferguson during his eighth-grade multicultural studies course at Ladue Middle School. Tim Lloyd/St. Louis Public Radio hide caption

itoggle caption Tim Lloyd/St. Louis Public Radio

Home health care workers Jasmine Almodovar (far right) and Artheta Peters (center) take part in a Cleveland rally for higher pay on Sept. 4. Sarah Jane Tribble/WCPN, Ideastream hide caption

itoggle caption Sarah Jane Tribble/WCPN, Ideastream

Sen. Mitch McConnell, R-Ky., poses with constituent Noelle Hunter. In a campaign ad, Hunter explains that McConnell helped get her daughter back from Mali after a custody battle. AP hide caption

itoggle caption AP