At Pace University in New York, college students who tutor seniors in local retirement homes are prepped with sensitivity training. Brittany Beckett (left), a Pace student, and Muriel Cohen work together at United Hebrew of New Rochelle. Courtesy of Pace University hide caption

Even though more than 30 states have banned or restricted cellphone use, it hasn't been easy to convince drivers to stop. iStockphoto.com hide caption

A screen shot of video footage attained by WBUR shows Worcester Police Sgt. Kevin Pageau (right) and Detective John Doherty as they interrogate Nga Truong, then 16, after the 2008 death of her baby boy. WBUR hide caption

Singer Chris Brown meets with fans after performing on NBC's Today show in New York in July. Two years after his arrest for assaulting his then-girlfriend Rihanna, many of his fans — mostly teenage girls — blame Rihanna for the incident. Charles Sykes/AP hide caption

Elyse Cherry is chief executive officer of Boston Community Capital, a nonprofit that is buying homes at market value and reselling them to current homeowners at a slight markup, so the homeowners can actually afford payments. Aarti Shahani/NPR hide caption

In a double-blind test by professional violinists, most couldn't determine — by sound alone — which violin was an original Stradivarius and which was a modern instrument. Above, a 1729 Stradivari known as the "Solomon, Ex-Lambert." Don Emmert/AFP/Getty Images hide caption