In 1999, researchers at one of Air Liquide’s customer companies approached the French industrial gases giant for help with a problem: They needed a nonchlorinated alternative to dichlorosilane, a ...

Efforts to crack down on precursor chemicals, used to produce drugs like cocaine and methamphetamine, seems to create a “balloon effect,” pushing drug production into countries with laxer restrictions ...

Federal officials called the capture of 1,300 barrels of substances coming from China to Mexico the largest seizure of precursor chemicals in the history of U.S. law enforcement during a Wednesday ...

A Mexican marine, part of an anti-drug and anti-corruption deployment, uses a sniffer dog to inspect cargo in the Port of Manzanillo. (Salwan Georges/The Washington ...

The Precursor is a pocket-sized mobile device with a physical keyboard and a small display. But it’s not a smartphone. Instead it’s an open hardware device aimed at developers and enthusiasts looking ...