Name: Homeland Security unveils new terror warnings
Uploaded: Wed Apr 20 2011 00:00:00 GMT+0000 (UTC)
Duration: 3 min 46 s
Description: Instead of color codes, the Department of Homeland Security will send out alerts — either elevated or imminent — when there is a credible threat. Homeland Security Secretary Janet Napolitano discusses this new system with TODAY’S Meredith Vieira.

April 20, 201103:46