Pope Benedict continues his Latin American trip by visiting Cuba. He'll celebrate the 400th anniversary of the appearance of the Virgin of Charity and meet with President Raul Castro. Guest host Jacki Lyden talks with Washington Post reporter Nick Miroff, who is in Cuba, about the Pope's efforts to improve relations in the communist country.

Increasingly angry about Chinese rule, a small but steadily growing number of Tibetans are choosing to protest by setting themselves on fire. Many Tibetans say they admire such actions — support that experts say means more such protests are likely.

The Supreme Court moved to take on the heart of the debate over the new health-care law's constitutionality... President Obama used humor to downplay a candid remark about missile-defense that was caught on an open mic... The EPA was expected to issue new rules to limit greenhouse gases from new power plants.

Hanoi, Hue, Danang and Saigon, were city names that were stamped on the American psyche a half-century ago, when the U.S. waged war in Vietnam. The once war-torn, Southeast Asian nation has made great strides to leave its troubled past behind.

Pope Benedict is in Cuba, Latin America's least Catholic country. He arrived Monday in Santiago, where Cuba's revolution began in 1953. He urged Cubans to seek unity and overcome their divisions, but his message wasn't especially political.

More than 50 international leaders wrapped up talks Tuesday in Seoul, South Korea, on what needs to be done to secure vulnerable stockpiles of plutonium and highly enriched uranium. President Obama hosted the first such summit two years ago. He praised the achievements since then, but said much more needs to be done.