The debate over gun control continues to dominate the headlines. Meanwhile, the U.S. Senate doubles the number of African-American members by welcoming William 'Mo" Cowan. He replaces John Kerry. Host Michel Martin talks politics with Republican strategist Ron Christie and Keli Goff, political correspondent for The Root.
Fish can absorb toxic chemicals that have been dumped into waterways, but they can also get them from eating plastic. And there's a lot of plastic in the open ocean, which scientists say can act like a sponge, soaking up the chemicals already out there.
Few people have homes where smart appliances talk to each other. A group of companies hopes to develop a "common language" of software to change that. And the firms hope an open standard will address potential security and privacy issues that are bound to arise.
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