Living on Earth: 
Silent Spring Turns 50
Rachel Carson's legacy includes the ban on pesticides like DDT in the United States but a cocktail of other dangerous chemicals is still in use. Frank Graham is an editor with the Audubon Society and author of a follow up to Carson’s work“Since Silent Spring”. Graham talks to host Steve Curwood about the use of pesticides in the US then and now.
www.loe.org/shows/segments.html?programID=12-P13...