Robert Siegel

The opioid epidemic has been fueled by soaring numbers of prescriptions written for pain medication. And often, those prescriptions are written by dentists.

"We're in the pain business," says Paul Moore, a dentist and pharmacologist at University of Pittsburgh School of Dental Medicine. "People come to see us when they're in pain. Or after we've treated them, they leave in pain."

In the seven years since the Affordable Care Act was passed, CEOs of U.S. health care companies have made a lot of money.

Their compensation far outstrips the wage growth of nearly all Americans, according to reporter Bob Herman, who published an analysis this week of "the sky-high pay of health care CEOs" for the online news site, Axios.

More than 20 years ago, children's author and illustrator Maurice Sendak and his friend Arthur Yorinks collaborated on a book. But they were both busy with other projects at the time, and they never bothered to get it published. Sendak died in 2012, but that decades-old collaboration, Presto and Zesto in Limboland, has been rediscovered.

Londoners may feel hot this summer, but historian Rosemary Ashton says it's nothing compared to what the city endured in 1858. That was the year of "The Great Stink" — when the Thames River, hot and filled with sewage, made life miserable for the residents of the city.

"It was continuously hot for two to three months with temperatures up into the 90s quite often," Ashton says. "The hottest recorded day up to that point in history was the 16th of June, 1858, when the temperature reached 94.5 degrees Fahrenheit, in the shade."

On July 15 last year, in an attempted coup, a faction of the Turkish military bombed government buildings, blocked roads and bridges and attempted to overthrow President Recep Tayyip Erdogan. The coup attempt was quelled by the next day — but Turkey has been feeling the repercussions ever since.

The government has engaged in sweeping purges, arresting tens of thousands and firing more than 100,000 people from their jobs, including civil servants, university professors and soldiers.

Among the troubling developments of the nation's opioid crisis: a large number of babies born prenatally exposed to opioids.

On a recent reporting trip, we visited Trinity Hospital in Steubenville, Ohio, where according to the acting CEO, 1 in 5 babies are born with prenatal opioid exposure. Other hospitals report as many as 1 in 8 newborns exposed to opioids in the womb.