ENS: Environmental Protester Takes Hostages in Discovery Channel Building Environment News Service (ENS) Environmental Protester Takes Hostages in Discovery Channel Building SILVER SPRING, Maryland, September 1, 2010 (ENS) – A man protesting the nature of the Discovery Channel’s environmental programming is holding hostages inside the Discovery Building in Silver Spring. Montgomergy County Police have shut down all traffic in the surrounding area and are negotiating with …