The 4/20 holiday is this weekend. And if you choose to celebrate, please do so safely. But also, in states like Texas — where the substance is still illegal — it's essential to be wary of a drug test ...

COLOMBO, Jan. 17 (Xinhua) -- Sri Lankan police introduced a new mouth swab test from Saturday to detect drivers under the influence of drugs, as part of efforts to curb road accidents linked to ...