Trump sees ‘carnage’ from America’s drug boom. But major cities are getting safer.

The use of illegal narcotics in the United States has varied over the years, but by many accounts — including the president's — the nation has never been so high on drugs.

Seizures of methamphetamine and heroin at the Mexican border have surged. Cocaine use is spiking again. The opioid epidemic has pushed overdose deaths past 60,000 per year, a record.