All Things Considered on WABE 90.1 FM

It's Cinderella plus Jackie Robinson times two. When Venus and Serena Williams burst onto the lily-white world of tennis, they changed the game and made history: They were sisters. From a poor neighborhood. Who brought unprecedented power to the game. And both reached No. 1.

Their journey is the subject of a new documentary called Venus and Serena, showing in select theaters around the country.

You might think that everything would have changed for the chemicals industry on April 16, 1947. That was the day of the Texas City Disaster, the worst industrial accident in U.S. history. A ship loaded with ammonium nitrate — the same chemical that appears to have caused the disaster last month in West, Texas — exploded. The ship sparked a chain reaction of blasts at chemical facilities onshore, creating what a newsreel at the time called "a holocaust that baffles description."

The American Psychiatric Association is about to release an updated version of its Diagnostic and Statistical Manual of Mental Disorders. The DSM helps mental health professionals decide who has problems such as depression, anxiety and schizophrenia.

Psychiatry's new manual, DSM-5, has been nearly 20 years in the making. During that time, scientists have learned a lot about the brain. Yet despite some tweaks to categories such as autism and mood disorders, DSM-5 is remarkably similar to the version issued in 1994.