New York Voices goes underground to spend time with some musicians that provide the soundtrack for your commute with this profile of four artists from the MTA’s Music Under New York Program (MUNY). Watch now.

On this day in 1835, Samuel Langhorne Clemens, popularly known as Mark Twain, was born in Florida, Missouri. Throughout his career, Mark Twain published more than 30 books and hundreds of short stories and essays.

Does America need government intervention to improve personal eating habits? Watch the discussion about fast food, zoning legislation, and social and health issues around eating with author Michael Pollan.

* Death toll climbs in Mumbai massacre
* Hostages and communication in crisis
* Anti-government protests continue in Thailand
* Great Barrier Reef dying faster than expected
Watch.

Robert Kuttner, author of the new book “Obama’s Challenge,” talks to NOW on PBS about the enormous obstacles to — and potential solutions for — getting America’s economy back on track. Watch.

Consuelo Mack interviews one of the most successful investors in modern times. In his first television interview, Jeremy Grantham tells Consuelo Mack why he is now positive on stocks and what he sees ahead for the global financial system. Watch.

At Duke University, they’re performing a series of experiments with Professor Tanya Chartrand on how we humans unconsciously mimic each other, and how doing so helps us become more social. Alan Alda visits…see article.

Violinist Gil Shaham plays the music of Sarasate with the Orpheus Chamber Orchestra at Lincoln Center’s Kaplan Penthouse. Watch now.

The U.S. is one of few countries to grant citizenship to children born on its soil, but many have suggested that the country revoke this right to deter immigration. See the different citizenship laws and requirements in each country. Read more.

We asked reporters, on- and off-air talent from around PBS and Thirteen this question: “What music are you thankful for?”…and they answered. So what music are YOU thankful for? (on Thanksgiving, Thirteen will air a day of music programs and documentaries. See schedule.)