This expands ` ` If You See Someone , Say Something '' campaign . ` ` Homeland security joins with hometown security , '' said DHS spokesperson Janet Napolitano . 320 Walmarts have joined " , DHS said statement . The `` If You See Something , Say Something '' campaign was originally implemented by New York City 's Metropolitan Transportation Authority as a simple and effective program that engages the public and key front-line employees to report indicators of terrorism , crime and other threats to authorities , according to the DHS statement . Program started by New York City 's Metropolitan Transportation Authority .
This expands ` ` If You See Someone , Say Something '' campaign . ` ` Homeland security joins with hometown security , '' said DHS spokesperson Janet Napolitano . 320 Walmarts have joined " , DHS said statement . Program started by New York City 's Metropolitan Transportation Authority .