Under Siege: America's Northern Border

Everyday, money, guns and drugs pour across America’s northern border into the United States. Even more terrifying, many consider our northern border to be the focal point for illegal crossings by individuals with ties to terrorist organizations. Charged with protecting our borders is the Department of Homeland Security, and nowhere is their job more challenging than along the 863-mile stretch of water on either side of Detroit’s Ambassador Bridge. Here, thousands of landing spots, narrow crossings and tremendous boat traffic make this newly explosive region nearly impossible to patrol. It’s up to the brave men and women of the DHS, armed with latest technology, to patrol the water, guard the checkpoints and track down the criminals in order to stem the tide and keep our country safe from foreign threats. (Source: The Discovery Channel)