Untitled: Fentanyl is now the leading cause of death for Americans ages 18 to 49. During the past seven years, as soaring quantities of fentanyl flooded into the United States, strategic blunders and cascading mistakes by successive U.S. administrations allowed the most lethal drug crisis in American history to become significantly worse. The Department of Homeland Security, whose agencies are responsible for detecting illegal drugs at the nation’s borders, failed to ramp up scanning and inspection technology at official crossings, instead channeling $11 billion toward the construction of a border wall that does little to stop fentanyl traffickers. Across the border in Tijuana, Mexico, it has long been a major transit point for illicit goods into the U.S. Now, it is a city of fentanyl. It is the most prolific trafficking hub in the United States for the drug and, increasingly, a city of users. There have been over 1,900 homicides in 2022, making it the deadliest city in Mexico. Seizing labs and narcotics would be a monumental task for any law enforcement agency. But in parts of Mexico, where organized crime often has more power than the government, the more important question has become: Are authorities even trying?