It’s 3 a.m. in San Francisco’s Tenderloin district, and an all-night, drug-fueled party has been raging for hours. The sidewalks are littered with trash and human feces. Addicts huddle in the alleys, inhaling fentanyl fumes through plastic straws; others are slumped over, barely conscious. Makeshift homeless encampments line block after block.
Dealers ar…
