Chris Valasek (left) and Charlie Miller talk about hacking into vehicle computer systems during the Black Hat USA 2014 hacker conference in Las Vegas last August. Steve Marcus/Reuters/Landov hide caption

Bianca Medici (left), a corporate recruiter for CDM Media, speaks with job applicants during a Chicago job fair in May. The economy added 223,000 jobs in June, and unemployment fell to its lowest rate since 2008. M. Spencer Green/AP hide caption

Beau Biden and his father, Joe Biden, at the 2008 Democratic National Convention in Denver. Mark Wilson/Getty Images hide caption

An electronic game at the Wind Creek Wetumpka casino in Wetumpka, Ala. Dave Martin/AP hide caption

Jason Furman, chairman of the White House Council of Economic Advisers, said consumers generally haven't been using the savings from lower gasoline prices to spend on other things. Justin Sullivan/Getty Images hide caption

The Amazon Echo is Bluetooth-enabled and can play music from Amazon Prime Music or other music services. And it's ready to listen to your questions and commands. Amazon.com/AP hide caption

Although Apple CEO Tim Cook's sexual orientation wasn't public, it has been something of an open secret in business and technology circles. Michael Graae/Getty Images hide caption

Patient Nina Pham is hugged by Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, outside of the National Institutes of Health in Bethesda, Md., on Friday. Pham was discharged after testing free of Ebola. Pablo Martinez Monsivais/AP hide caption

Microsoft CEO Satya Nadella backtracked on his suggestion that women shouldn't ask for raises. Brendan McDermid/Reuters/Landov hide caption

Mikey Dickerson is the administrator of the newly created U.S. Digital Service, which is aimed at making government websites more consumer-friendly. Whitehouse.gov hide caption

Twitter released a scorecard showing its workforce — like other major tech firms — is largely male and white. Jeff Chiu/AP hide caption

An attendee wears an Oculus Rift HD virtual reality headset at the International Consumer Electronics Show in Las Vegas. Robyn Beck/AFP/Getty Images hide caption

German computer scientists were able to transmit data using computers' speakers and microphones. iStockphoto hide caption

Federal Reserve Board Vice Chairman Janet Yellen is considered a top candidate to replace Ben Bernanke now that Lawrence Summers has withdrawn his name for contention for the Fed's top job. Robert Galbraith/Reuters/Landov hide caption

Amazon CEO Jeff Bezos, who purchased The Washington Post, is the latest big-name tech entrepreneur to buy a struggling media company. Rick Wilking/Reuters/Landov hide caption