https://www.justice.gov/usao-sdca/pr/fentanyl-seizures-border-continue-spike-making-san-diego-national-epicenter-fentanyl
Fentanyl Seizures at Border Continue to Spike, Making San Diego a National Epicenter for Fentanyl Trafficking; U.S. Attorney’s Office Prioritizes Prosecutions and Prevention Programs
Thursday, August 11, 2022
"…Mexican cartels are increasingly manufacturing fentanyl for distribution and sale in the United States Precursors are imported from China and other countries and then pressed into pills, powder or mixed into other drugs at massive, industrial-scale labs.
Initially, drug trafficking organizations were adding small amounts of fentanyl to large loads of other drugs like methamphetamine. But more recently, these criminal organizations are moving significantly larger quantities of fentanyl pills and powder across the border.
…"