Here's the first installment in a new series I'm producing with the public radio program The World. It's a global investigative project called Tracking Charity. In this story, we investigate a promising new technology designed to combat malaria. I visit the Africa nation of Malawi where, a decade on, serious problems are beginning to arise; ones that may have been avoidable. After the story, I speak with The World's host, Marco Werman, about the Tracking Charity series.