Department of Homeland Security investigators (acting under-color-of-law) discover a concrete reinforced drug smuggling tunnel with a rail and ventilation system.  Sophisticated tunnels of this construction are usually discovered on the average of one per year.

       [added 8/31/2024]

Subsequent Events:

References:

Stakeout at National City stash house leads to sophisticated ‘narco-tunnel’ | KPBS Public Media
www.kpbs.org/news/local/2022/05/16/stakeout-at-national-city-stash-house-leads-to-sophisticated-narco-tunnel

Drug smuggling tunnel with rail system uncovered on US-Mexico border | US news | The Guardian
www.theguardian.com/us-news/2022/may/16/california-drug-smuggling-tunnel-us-mexcio-border

Current U.s. National Debt:

$36,214,966,389,282

Source