Pakistan is currently at the center of the global effort to eradicate polio. Although the country has reported only about a hundred cases this year, that's more cases than in all other nations combined.
Eliminating the paralyzing disease is a major logistical operation in Pakistan. More than 200,000 vaccinators fan out across the country, several times a year, to inoculate millions of children. The government also deploys tens of thousands of armed security forces to guard the workers.
OkCupid, the online dating site, disclosed Monday that they sometimes manipulate their users' profiles for experiments. Christian Rudder, co-founder and president of OkCupid, tells Audie Cornish that these experiments help the site improve how it works.
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The late musician Jack Clement's nickname, "Cowboy," came from a radio show he was part of in the early 1960s. It had nothing to do with horses or boots, but it happened to fit his maverick approach to work.