Terry Gross

New York Times chief Washington correspondent David Sanger details how President Obama accelerated the use of innovative weapons to fight the wars in Afghanistan and Iraq, and sped up a wave of cyberattacks against Iran to destroy its nuclear centrifuges.

What does the Internet look like? Journalist Andrew Blum decided to find out. His new book, Tubes, is a journey into the Internet's physical infrastructure -- where our data is stored and transmitted.

Doc Watson, who was called "a living national treasure" for his virtuoso flat-picking and his repertoire of traditional folk and bluegrass tunes, has died. He was 89. Fresh Air remembers the blind guitar and banjo player with excerpts from a 1988 interview.