At Georgia State in Atlanta, more students are graduating, and the school credits its use of predictive analytics. But critics worry that the algorithms may be invading students' privacy and reinforcing racial inequities.

Tasers have become an essential tool for police, but how effective are they? An APM Reports investigation finds that officers in some big cities rated Tasers as unreliable up to 40 percent of the time, and in three large departments, newer models were less effective than older ones. In 258 cases over three years, a Taser failed to subdue someone who was then shot and killed by police.

Scientific research has shown how children learn to read and how they should be taught. But many educators don't know the science and, in some cases, actively resist it. As a result, millions of kids are being set up to fail.

You might think apprenticeships are a relic from an earlier era, but a growing number of Americans are using them as a way into the middle class.

They bet that college would help them move up. Did it pay off?

Colleges have long offered a pathway to success for just about anyone. But new research shows that with the country growing ever more economically divided, colleges are not doing enough to help students from poor families achieve the American Dream.

At the end of 1944, the U.S. government lifted the order barring people of Japanese ancestry from the West Coast. Many people freed from camp faced racism and poverty as they tried to rebuild their lives.

At the beginning of World War Two, Japanese Americans not already in the military were declared ineligible for service. The government said it doubted their loyalty. But as the war dragged on, the need for manpower grew urgent.

Japanese warplanes bombed Pearl Harbor on December 7, 1941. Hours later, the FBI began rounding up people of Japanese ancestry on the West Coast.

Education Secretary Betsy DeVos is a major investor in Neurocore, a company based in Michigan that claims to help kids with various attention deficit disorders. Since taking office, she's kept her stake in the company and invested even more money in it. In the third and final installment of "Ethics Be Damned," APM Reports investigative journalist Tom Scheck joins Lizzie O'Leary of Marketplace Weekend to parse DeVos' potential conflicts of interest. Plus, what happens if watchdog groups use ethics as a political weapon? To read Tom's full investigation, visit apmreports.com/ethics.