David Adjaye - Architect

Can architecture inspire people to change the way they think and behave? Sarah Montague speaks to architect David Adjaye, who has designed buildings including the Nobel Peace Centre in Oslo, a business school in Moscow, shopping centres in Beirut and Lagos, a children's hospital in Rwanda, and a housing project in New York's Harlem.

Adjaye's biggest project yet is about to open - the National Museum of African American History and Culture, located on the National Mall in Washington DC. Has he got the design right? What is the test of a good building?