Talk of the Nation

Scenes of destroyed homes and businesses were common following the recent Oklahoma tornadoes. David Prevatt, a structural engineer at the University of Florida, says that improving resistance to tornadoes will require better building materials and techniques, plus a strong dose of political will.

When doctors run out of clues on how to treat a cancer patient, they sometimes order a scan of all the patient's genes. But such a test can turn up unexpected results, such as greater risk of another disease. When are doctors obligated to tell the patient what they know? And do patients have the right not to know?

Many people associate France today with the production of great wines. But winemaking isn't native to the French. Patrick McGovern, an archaeologist of fermented beverages, has dated the beginning of viniculture in France to around 500 B.C. and contact with the Etruscans.

In her new book Scatter, Adapt, and Remember: How Humans Will Survive a Mass Extinction writer Annalee Newitz looks back at Earth's previous mass extinctions to see what lessons might be learned, and how earthlings might prepare themselves to survive a future planet-wide catastrophe.

Reporting in the journal Science Translational Medicine researchers say a new method for essentially resetting the immune systems of patients with multiple sclerosis appears to be safe. Study co-author Stephen D. Miller of Northwestern University, describes the novel approach tested in this small, phase 1 clinical trial and explains how it might one day also be used to treat other autoimmune diseases such as type 1 diabetes.

In 2011, Comet Lovejoy traveled through the sun's corona and lived to tell the tale. But its tail was the most telling. Reporting in the journal Science, Cooper Downs, an astrophysicist at Predictive Science Inc., says that the wiggly path of the comet's tail helps explain the sun's magnetic field.

The highly anticipated animated films Monsters University, Despicable Me 2 and Turbo hit theaters this summer. From cel technology to full-length, computer-animated, celebrity-studded movies, animation has come a long way.

Science fiction movies throughout time are populated with robots. But when it comes to films with a tight focus on robots only a handful may come to mind. In advance of Guillermo del Toro's Pacific Rim, TOTN's favorite film buff Murray Horwitz discusses the best robot movies of all time.

According to a top-secret court order obtained by The Guardian, the National Security Agency has collected the phone records of millions of U.S. Verizon customers since late April. The Guardian's Spencer Ackerman explains the coming debate over the scale of domestic spying operations.

To date, the civil war in Syria has claimed tens of thousands of lives and, according U.N. estimates, has caused more than a million refugees to flee to neighboring countries. As part of TOTN's "Looking Ahead" series, NPR foreign correspondent Deb Amos discusses where the conflict may go.

Irish-American author Colum McCann has spent the better part of his life inhabiting others in his novels — from Russian ballet dancers to New York subway diggers. In TransAtlantic, he tells the story of his native country — its famine, its troubles, its emigrants and those who stayed.

Since the 2012 election, Republican strategists and leaders have called for changes in the party's approach to voters. Some argue that the GOP must appeal to younger and more diverse demographics or risk losing congressional seats next November.

What started as a small sit-in on Friday in Istanbul grew into a massive demonstration against the Turkish government. That government dismissed the demonstrators as extremists. Steven Cook, of the Council on Foreign Relations, talks about Turkey's changing role as a democracy in the region.

As Robert Mueller's tenure at the director FBI comes to a close, the Obama administration narrows the global war on terror. The White House is expected to nominate former deputy attorney general James Comey. The new leader will face a host of new challenges.

President Barack Obama will meet with Chinese president Xi Jinping in California June 7-8. The rare, informal meeting offers an opportunity to discuss economic, security and environmental objectives. Douglas Paal, of the Carnegie Endowment for International Peace, discusses possible outcomes.