http://www.xdrtb.org Photojournalist James Nachtwey sees his TED Prize wish come true, as we share his powerful photographs of XDR-TB, a drug-resistant strain of tuberculosis that’s touching off a global medical crisis. Learn how to help at http://www.xdrtb.org

http://www.ted.com Historian Doris Kearns Goodwin talks about what we can learn from American presidents, including Abraham Lincoln and Lyndon Johnson. Then she shares a moving memory of her own father, and of their shared love of baseball.

http://www.ted.com Noah Feldman makes a searing case that both politics and religion — whatever their differences — are similar technologies, designed to efficiently connect and manage any group of people.

http://www.ted.com Game designer David Perry says tomorrow’s videogames will be more than mere fun to the next generation of gamers. They’ll be lush, complex, emotional experiences — more involving and meaningful to some than real life.

http://www.ted.com In this engrossing EG talk, architect Liz Diller shares her firm DS+R’s more unusual work, including the Blur Building, whose walls are made of fog, and the revamped Alice Tully Hall, which is wrapped in glowing wooden skin.

http://www.ted.com Outside.in’s Steven Johnson says the Web is like a city: built by many people, completely controlled by no one, intricately interconnected and yet functioning as many independent parts. While disaster strikes in one place, elsewhere, life goes on.

http://www.ted.com In this prophetic talk from 2003, roboticist Rodney Brooks talks about how robots are going to work their way into our lives — starting with toys and moving into household chores … and beyond.