Meth lab explodes in government building (VIDEO)

An explosion at the National Institute of Standards and Technology building in Gaithersburg, Maryland, last weekend led to the discovery of what appeared to be a lab where methamphetamine was being manufactured. Tell-tale signs included pseudoephedrine, drain cleaner and a recipe for meth.

A federal security officer, who incidentally resigned the day after the 25-foot explosion, suffered non-life threatening burns on his hands and arms.

Local law enforcement, along with the DEA, are investigating the incident.

[ NBC Washington ]