K2 is smoked or ingested to obtain the high. It is sold online for about $25 a gram, but it is also showing up in tobacco stores, where it is being sold as incense or potpourri, according to the DEA.

Inmates at Devens in the past have become sick from smoking paper believed to contain K2, as well as prison staff who have ...

An FBI agent wrote in a court document that K2 "presents a health problem at the federal prison FMC Devens, where inmates have become sick from smoking paper believed to be laced with the drug, as ...