NYC couple arrested after explosive substance, papers titled "The Terrorist Encyclopedia" found in apartment

(CBS/AP) NEW YORK - Authorities say a New York City couple has been arrested on weapons charges after a substance used to make bombs and papers tiled "The Terrorist Encyclopedia" were found in their Greenwich Village apartment.

Morgan Gliedman is awaiting her court appearance. Her boyfriend, Aaron Greene, was held without bail after he appeared in state court in Manhattan on Sunday. Both were arrested Saturday as police executed a search warrant at their apartment.

Police Detective Martha Barrera reported that a plastic container containing a white powdery substance known as HMTD was found in the living room. The substance is highly explosive.

Both were charged with criminal possession of a weapon.

Attorney Lisa Pelosi, representing Greene, called the situation sad but declined further comment.