Amid New Threat, N.Y. 'Almost Looks Like Attack Has...

D.C., N.Y. on Alert Over 'Credible' Terror Threat Around 9/11 Anniversary More

From Times Square in New York City to the Metro system in Washington, D.C., police were in full force after word of a new terror threat, which counterterrorism officials called "credible," but unconfirmed. Judy Woodruff reports.

AIR DATE 9/9/11