Walmart joins 'see something, say something' campaign

The Department of Homeland Security announced this week that it is expanding its "If You See Something, Say Something" campaign, which encourages the public to report suspicious activity, to Walmart stores across the country.

According to a statement issued by DHS, more than 230 Walmart stores have already joined the campaign, with a total of 588 stores in 27 states expected to join in the coming weeks.

"Homeland security starts with hometown security, and each of us plays a critical role in keeping our country and communities safe," said DHS Secretary Janet Napolitano. "I applaud Walmart for joining the ‘If You See Something, Say Something' campaign. This partnership will help millions of shoppers across the nation identify and report indicators of terrorism, crime and other threats to law enforcement authorities."

DHS launched the campaign earlier this year and has already expanded it to include the Mall of America, Amtrak, the Washington Metropolitan Area Transit Authority, as well as sports and general aviation industries.