Talk of the Nation

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NEAL CONAN, HOST:

This is TALK OF THE NATION. I'm Neal Conan with a special broadcast today from the Joseph H. and Claire Flom Auditorium at the Woodrow Wilson Center in Washington, D.C. Today's show is part of a project called The National Conversation, a joint production of the Wilson Center and NPR.

According to the World Health Organization, about 36 million people worldwide currently suffer from some degree of dementia, including Alzheimer's disease. Experts predict the number is set to double by 2030. Most families and health care systems are largely unprepared.

Ralph Reed, founder of the Faith and Freedom Coalition, discusses the role of social conservatives in the GOP politics. Incoming congressman Rick Nolan talks about his return to the House after more than thirty years. NPR's Political Junkie Ken Rudin recaps the week in politics.

A report from the National Council on Disability finds that parents with physical or mental disabilities have a greater risk of losing custody of their children. The study says that the U.S. legal system needs to provide more support for these parents.

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NEAL CONAN, HOST:

It's Tuesday and time to read from your comments. Several listeners told us they appreciated our segment on what we get from playing first-person shooter games. Kristen(ph) wrote: I don't personally play videogames, but my boyfriend does. He was an infantry scout in Iraq, and the shooter games were actually recommended by his psychiatrist as a way to have him differentiate between what's real and what is not.

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NEAL CONAN, HOST:

Last week, Egyptian President Muhammad Morsi received plaudits from around the world after he brokered a cease-fire between Israel and Hamas. Then a day later he issued a decree, giving him near-absolute power. After some times of violent protests and a visit from outraged judges, the president backed off a bit, but many worry that Morsi and his Muslim Brotherhood will now dictate Egypt's new constitution and that the revolution just created one strong man for another.

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NEAL CONAN, HOST:

On Dec. 21, 2012, some fear that a rogue planet will collide with Earth and destroy the planet, or that the supposed end of the Mayan calendar will lead to the obliteration of the universe.

When people have questions about these scenarios, they often turn to the Internet.

NASA astrobiologist David Morrison has taken it upon himself to enter that online conversation and answer hundreds of questions about the science of existential threats.