Chinese human rights activist Chen Guangcheng is in a Beijing hospital, hoping to eventually come to the U.S. to study. But what do Chinese-Americans think of him, and the diplomatic tension he sparked between the U.S. and China? Host Michel Martin discusses reactions with Sherry Zhang, host of a Mandarin-language call-in show in California.

The movie The Avengers broke box office records this weekend. That's just one sign of the growing interest in comic book heroes, science fiction, and other fantasy genres. Host Michel Martin speaks with writer George Gonzalez about covering a recent convention for die-hard fantasy fans.

Auma Obama, President Obama's half-sister, discusses their relationship, and what his rise has meant to the Obama family in Kenya. Host Michel Martin speaks with Auma Obama about her recently released memoir, And Then Life Happens.

Chicago Pastor Corey Brooks spent three months living on the rooftop of an abandoned motel near his church. He was raising money to tear down the building because it had become a magnet for crime. Pastor Brooks met his goal. For Tell Me More's series "In Your Ear," Brooks shares the songs that helped him endure his rooftop residence.

By saying Sunday on NBC's Meet the Press that he is "absolutely comfortable" with equal rights for partners in same-sex marriages and that love is at the root of all marriages "whether they're marriages of lesbians or gay men or heterosexuals," Vice President Biden has set off speculation about whether the Obama administration may soon fully endorse same-sex marriage.

The mystery surrounding the death of Army Capt. Bruce Kevin Clark, who collapsed on April 30 while on a Skype call from Afghanistan to his wife back in the U.S., has deepened.

"The United States has for several years been secretly releasing high-level detainees from a military prison in Afghanistan as part of negotiations with insurgent groups," reports The Washington Post, which calls the program "a bold effort to quell violence, but one that U.S. officials acknowledge poses substantial risks."

(Note: We updated the market news in this post at midday.)

A victory Sunday by Socialist presidential candidate Francois Hollande in France and the rejection by voters in Greece of that country's austerity policies have caused a "seismic shift" that threatens the future of the euro,

Mitt Romney is not the only Republican running for president. Congressman Ron Paul of Texas is still in the race. Over the weekend in Nevada, Paul supporters outnumber Romney backers at the state GOP convention in Sparks.

The alleged mastermind of the Sept.11 attacks, Khalid Sheikh Mohammed, and four other defendants appeared in a military courtroom at Guantanamo Bay, Cuba, over the weekend to answer a roster of charges filed against them. The hearing was supposed to be a straightforward arraignment, but nothing went according to plan.