The plane's vanishing is a tragedy and an unsolved mystery. The desire for answers means the event could retain attention for decades, as have the disappearances of Jimmy Hoffa and Amelia Earhart.
About 150 million people worldwide have hepatitis C, and all should be assessed and treated, the World Health Organization says. The cost of screening and drugs means that won't happen soon.
One suspect — a 16-year-old sophomore boy — is in custody after Wednesday's incident at Franklin Regional High School in Murrysville, near Pittsburgh. At least 19 teenagers and one adult were hurt.
Fresh figures show that a relatively small number of doctors received a significant share of Medicare payments in 2012. But analysts warn against jumping to conclusions about what that means.