By CNN Producer Paul Courson
Homeland Security Secretary Janet Napolitano unveiled new television ads Wednesday for the public awareness campaign "If you see something, say something," as the 10th anniversary of the September 11, 2001, attacks nears.
"Today, we are stronger than we were on 9/11," Napolitano said, but added, "There are no guarantees in this world."
"What we can do is maximize our ability to prevent an attack from occurring, minimize the ability of such an attack having a large impact and increase our ability to respond."
Video of the new television ads was played during Napolitano's remarks at the U.S. Chamber of Commerce. One of them is set in a public transit station, where pedestrians watch as someone pulls a handbag from the trunk of a car and leaves it on a bench in the waiting area.