The United States is the largest producer of electronic waste, generating nearly 8 billion tons a year. In this story from our environmental public media partner, EarthFix, we follow a team of investigators using GPS technology to track America’s waste trail.

In this episode of SciTech Now, tracking America’s electronic waste; the psychology of imaginary friends; video producer Luke Groskin introduces Science Friday’s new series about children and their imaginary companions; and designing an accessible workplace.