paul salopek a lot of other things, including what shoes he plans to wear on his trek. can listen to his answers online and see a map showing his route. plus, the pulitzer center is asking students to submit questions and to share stories about their own journeys. find a link on our website. >> woodruff: finally tonight, we remember indian musical icon ravi shankar who introduced western audiences to a new sound and a new instrument. >> reporter: the legendary sitar virtuoso brought his unique sound to an international stage, striking a chord with music lovers around the world. in new delhi, india today, at the music institute named for ravi shankar, students came to pay their respects. >> ( translated ): the purity, sweetness, and innovation in his music that we have seen over the years, his legacy will continue. even if we keep trying, it is difficult to reach his level. >> reporter: shankar's contributions were also praised by his peers in the music industry. >> he was a great artist, i mean he took sitar to the world and today sitar is being played all over the worl

. >> sreenivasan: paul salopek is about to spend seven years tracing the ancient path of human migration around the globe. we talked about his route, the shoes he'll wear, and his emphasis on "slow journalism." and what's it like to have breast cancer in the poorest nation in the western hemisphere? that's next from our series with "pri's the world" on cancer in the developing world. all that and more is on our web site, newshour.pbs.org. ray? >> suarez: and that's the newshour for tonight. on wednesday, we'll look at the world in the year 2030. one intelligence report projects china will be on top economically, and the u.s. will be energy-independent. i'm ray suarez. >> woodruff: and i'm judy woodruff. we'll see you online, and again here tomorrow evening. thank you, and good night. major funding for the pbs newshour has been provided by: >> bnsf railway. and by the alfred p. sloan foundation. supporting science, technology, and improved economic performance and financial literacy in the 21st century. and with the ongoing support of these institutions and foundations. and... this progra