The New Yorker’s John Seabrook tells us what YouTube is doing to maintain its competitive edge. Tony- and Emmy award-winner Cynthia Nixon on her role in the Broadway revival of Margaret Edsen’s Pulitzer Prize winning play,“Wit.” The BBC’s A History of the World in 100 Objects takes a look at a form fitting gold cape that had been worn by a very powerful person in Bronze Age Britain. Then, we’ll take the temperature on the unusually warm weather we’ve been having. Plus, the next installment in our Please Explain series on How to Save the World takes a look at efforts to combat climate change.