Daphné Richemond Barak, author of “Underground Warfare,” tells CNN national security analyst Peter Bergen that tunnels built by Hamas in Gaza are likely to be a key target of the Israeli ...

Forty feet underground, the city's once-bustling system of freight tunnels remains. Social media videos show adventurers and ...

The underground tunnels were off limits to the shopping public when Northland was in business, and they remain closed today. But Susan Wassenberg walked almost all of them during her 28 years ...

The U.S. Drug and Enforcement Agency could hire informants to reveal where Mexican drug cartel tunnel "cover-ups" are located in the U.S., a former DEA special agent says.