An electron microscope view of the bird flu virus. PR Newswire hide caption

At Universal Pain Management, Dr. Francis Riegler confers with Trudy Roberts, the clinic's nurse practitioner, over a patient's record of prescription drug purchases. Sarah Varney/KQED hide caption

M. Ward's latest album, A Wasteland Companion, comes out April 10. Courtesy of the artist hide caption

Workers share office space at Grind, a co-working company in New York City. Those who want to use Grind's facilities are vetted through a competitive application process. JaegerSloan hide caption

Panos Papadopoulos, 28, is the co-founder of BugSense, which makes a service to track bugs in mobile phone applications. He also mentors other young entrepreneurs at CoLab, a business incubator in Greece. Joanna Kakissis/NPR hide caption

Several Web browsers, including Mozilla's Firefox, enable users to request additional privacy online via a "do not track" button. But there's no consensus on how much privacy the button should offer users. Leon Neal/AFP/Getty Images hide caption

Rabbi Yaakov Horowitz at the Manischewitz factory in 2007 Mike Derer/AP hide caption

Carole King was in a doo-wop group called the Co-Sines when she was a teenager. Jim McCrary hide caption