Peter Singer talks solving social media and warfare conundrum

New America CEO Anne-Marie Slaughter talks to Peter Singer, a Senior Fellow at New America and Professor of Practice at ASU’s Center for the Future of War. Singer talks about the changing nature of both warfare, which includes social media. This shift has brought toxicity to civic engagement, and Singer talks about ways to solve that.

MORE: Explore other episodes of “Innovating the Future”

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'Last Tango in Hailfax' returns for season four

After seven years of marriage, Alan and Celia discover that wedded bliss isn't always blissful. Clashing politics, Alan's new job and a wild local lad create tension. Caroline gets emotionally embroiled at work. Alan's brother visits. See what else unfolds in season four of "Last Tango in Hailfax."

'Nature' explores the wild on Wednesday nights

From the remarkable octopus to a river of dreams, experience compelling stories of the natural world as "Nature" returns to Arizona PBS Wednesday nights at 7 p.m.

'PBS KIDS Talk About: Race and Racism' special to debut on Oct. 9

The half-hour program will feature authentic conversations between real children and their parents, and will include content from PBS KIDS series Daniel Tiger's Neighborhood, Arthur and Xavier Riddle and the Secret Museum.