Archeologists Put an End to a Centuries-Old Rumor, Confirm the Existence of Underground Tunnel System Beneath Cusco Archaeologists confirmed the presence of an enigmatic underground tunnel system that ...

Brown said DEA and Homeland Security Investigations (HSI) personnel must intensify their investigations into underground tunnels to discover “cover-ups” of the tunnels’ US exits. “Cover-ups” are ...

The U.S. Drug and Enforcement Agency could hire informants to reveal where Mexican drug cartel tunnel "cover-ups" are located ...

At such a critical moment in US history, we need reporters on the ... archaeologists in Peru have confirmed the existence of an underground tunnel network, thought to have been built by the ...

The federal government still processes retirement applications manually in a Pennsylvania limestone mine, a system Elon Musk criticized as outdated and inefficient.

The rugged geography, dense population, and arid nature of Southern California has created the need for some of the most unique and complex tunnel systems anywhere in the world, and over the last ...