NOVA scienceNOW

Kryptos

Clip | 12m 36s  | Video has closed captioning.

A coded sculpture at CIA headquarters has yet to be fully broken.

Aired: 07/01/07

Rating: NR

Problems Playing Video? | Closed Captioning

Funding for NOVA ScienceNOW is provided by the National Science Foundation and the Alfred P. Sloan Foundation.