'A Beautiful Mind' Susan Stamberg talks with our math expert Keith Devlin about the life and work of the award-winning mathematician John Nash, who's the subject of the new movie A Beautiful Mind.

'A Beautiful Mind'

'A Beautiful Mind'

Audio will be available later today.

Susan Stamberg talks with our math expert Keith Devlin about the life and work of the award-winning mathematician John Nash, who's the subject of the new movie A Beautiful Mind.