Feds Uncover "Most Sophisticated Tunnel In US History" Along Southern Border  

Special agents with Homeland Security Investigations (HSI) have uncovered an incomplete drug smuggling tunnel stretching from Arizona to Mexico, reported AZ Family

Agents are calling the tunnel "the most sophisticated [drug] tunnel in U.S. history" after finding a rail cart system, ventilation ducts, electrical wiring, and water lines, along with extensive wall reinforcements. 

"This appears to be the most sophisticated tunnel in U.S. history, and certainly the most sophisticated I've seen in my career," said Carl E. Landrum, acting chief patrol agent with the Border Patrol's Yuma Sector.

The tunnel is 3 feet wide and 4 feet high and runs from a Mexican neighborhood to San Luis, Arizona. 

Agents sent a camera 25 feet underground to investigate the tunnel. Here's what they found:

"Homeland Security Investigations and our esteemed law enforcement partners swiftly and effectively worked together to uncover and dismantle a cross-border tunnel for smuggling purposes into the United States," said Scott Brown, HSI special agent in charge in Phoenix.

Brown said, "despite the international pandemic, HSI and our law enforcement colleagues remain resilient and committed to pursuing dangerous criminal trans-border smuggling activities along the southwest border."

The tunnel was discovered in mid-July when U.S. Border Patrol agents found a sinkhole near the U.S.-Mexico border. HSI was called in to investigate, and that was when they found the tunnel.