Cannabis drug tests measure tetrahydrocannabinol (THC) and its metabolites, which can stay in your body long after the “high” fades. Detection ranges from hours in blood or saliva to weeks or months ...

This article originally appeared on ProPublica. Immigration agents have put civilians’ lives at risk using more than their guns. An agent in Houston put a teenage citizen into a chokehold, wrapping ...

TV presenter Kirstie Allsopp has become embroiled in a social media row with children’s author Michael Rosen after accusing some pensioners who use a free London public transport pass of “bankrupting ...

Machine learning is the ability of a machine to improve its performance based on previous results. Machine learning methods enable computers to learn without being explicitly programmed and have ...