Andrea Mitchell talks with Bob Fu, founder and president of China Aid, and Christopher Johnson, former China analyst with the CIA, about Chinese dissident Chen Guangcheng's escape from house arrest under the Chinese government, and his current location in U.S. custody.

U.S. relations with China are being put to the test over the fate of Chen Guangcheng, a blind Chinese dissident who escaped from house arrest in China and is believed to be in the U.S. embassy or another safe site. NBC's Ian Williams reports.

Cheri Young, the wife of the government's star witness in the John Edwards corruption trial, will return to the stand Tuesday. On Monday, Young talked about how far her family had gone to cover up Edwards' extramarital affair. NBC's Lisa Myers reports.

Counterterrorism advisor Jon Brennan outlined the use of drones, arguing that it's legal and has reduced the ability of al-Qaida to attack the U.S. NBC News senior investigative producer Bob Windrem and The National Journal's Yochi Dreazen discuss.

George Zimmerman's attorney defends his move as a counter to fake sites. Cara Moore of WESH-TV of Orlando, Fla., reports.

The Occupy Wall Street movement is organizing a nationwide strike on May 1st, the International Workers Day. Panelists on "Up With Chris Hayes" discuss the history of worker strikes in the United States, their subsequent decline, and how Occupy plans to revive labor protests.

In this April 2011 video, Daniel Borochoff, the president of the American Institute of Philanthropy, talks about the controversy surrounding the book, "Three Cups of Tea," by Greg Mortenson.

NBC's Andrea Mitchell talks with Cecile Richards, president of Planned Parenthood, about the latest piece of legislation out of Texas that would block funding for the state's Planned Parenthood centers.

The wife of the man that freed the exotic but dangerous animals in Ohio is fighting to get custody of the six surviving animals being held at the Columbus Zoo. NBC's John Yang reports.

A woman was rescued from the Utah wilderness after spending four days lost. KSL's John Daley reports.

Tuscson, Ariz. police continue to search for a missing 6-year-old girl. NBC's Miguel Almaguer reports and NBC's Ann Curry talks with criminologist Dr. Casey Jordan about the case.

Stuart Chaifetz, the father of the autistic boy who was allegedly bullied by educators, tells msnbc's Thomas Roberts he wants the head teacher fired who was recorded on tape let go.

One year after a tornado flattened Joplin, Mo., the town managed to hold a special prom for the high school seniors, with help from the community. NBC's Chelsea Clinton reports.

A resourceful Alabama couple convert an old school bus into a tornado shelter. Tametria Conner reports.

One man's concern about the fury of Mother Nature has turned into a bustling business.

Six years since construction began on 1 World Trade Center, the tower will soon surpass the height of the Empire State Building's roof. The iron workers placing and setting each beam in the shadow of the 9/11 attacks say they are building out of a "sense of necessity" and know that the tower, now soaring nearly 1300 feet, will help the nation and the iron workers themselves heal. Many of the workers building the tower helped clean the smoldering debris in the days after the terrorist attack. Harry Smith reports.

One World Trade Center, also known as Freedom Tower, is set to eclipse the Empire State Building to become the tallest building in New York City at 1,271 feet. At its completion the tower will stand 1,776 feet tall.

On Monday, the World Trade Center surpassed the height of the top floor of the Empire State Building. When it's completed, the tower will eventually rise 1,776 feet high. NBC's Harry Smith reports.

A man is mourning the deaths of his wife, daughter and five other family members who were killed when their SUV plunged off an overpass near New York City's Bronx Zoo. NBC's Jeff Rossen reports.