Roughly 2.5 million Americans are addicted to heroin and opioids like Oxycontin. Researchers say addiction takes over the brain's limbic reward system, impairing decision making, judgment and memory.
More than 300,000 California teachers are represented by unions like the California Teachers Association, seen here protesting proposed budget cuts in 2011. Nine percent of those California teachers have not joined the union, but under state law, any union contract must cover them too, so they are required to pay an amount that covers the costs of negotiating the contract and administering it.
Mark Ralston/AFP/Getty Images
hide caption
British singer David Bowie attends a press conference at the 36th Cannes Film Festival in 1983. Bowie died Sunday at the age of 69.
Ralph Gatti/AFP/Getty Images
hide caption
Young South Koreans in the Hongdae neighborhood of Seoul, the weekend following North Korea's latest announcement of a nuclear test.
Haeryun Kang/for NPR
hide caption
