Drug Smuggling Tunnels Skyrocketed After U.S. Tightened Border Security

From The Daily Caller:

President Donald Trump’s proposed wall won’t stop Mexican cartels from smuggling drugs into the U.S. through illegal tunnels, which increased significantly after a border fence was built and security was considerably tightened.

“Illegal tunneling activity on the southwest border of the United States represents a significant and persistent threat to border security and will likely remain so in the near future,” the Immigration and Customs Enforcement Homeland Security Investigations (HSI) office warned in a 2010 report that only became public April 2, 2017.