Marijuana plants are grown for medicinal purposes in a clandestine greenhouse in Mexico City in 2015. Mexico legalized medical marijuana in 2017, but recreational pot remains largely illegal.
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Julie Eldred is back at home in Massachusetts now. But she was sentenced to a treatment program for opioid addiction as part of a probation agreement, then sent to jail when she relapsed. Some addiction specialists say that's unjust.
These pills were made to look like Oxycodone, but they're actually an illicit form of the potent painkiller fentanyl. A surge in police seizures of illicit fentanyl parallels a rise in overdose deaths.
Tommy Farmer/Tennessee Bureau of Investigation/AP
Police released a photo of bra inserts that were found to contain about 50 gallons of liquid methamphetamine. Australian authorities say they've arrested four people over the illegal drug shipments.
Australian Federal Police
Yolanda Roberson, who directs the Empowerment program, teaches a class at a Boys and Girls Club in the Bronx. The classes are funded by the state of New York.
Robert Stolarik/Courtesy of Youth Today
The drug sold as K2, spike, spice or "synthetic marijuana" may look like dried marijuana leaves. But it's really any of a combination of chemicals created in a lab that are then sprayed on dried plant material.
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This genetically modified yeast can convert sugar into powerful opioid drugs. Scientists working with the modified yeast strains are required to register them with the Drug Enforcement Administration and keep the yeast under lock and key.
Courtesy of Christina Smolke/Stanford University
Donetta Held unloads needles and pipes confiscated from a contaminated meth home. She owns an environmental decontamination company and says meth tests are their most demanded service.
Families harvest poppy bulbs in the Badakhshan province of Afghanistan. To collect the opium, they score the bulbs and let the milky substance ooze out. The dried residue contains about 10 percent morphine.
David Guttenfelder/AP/National Geographic