Many of those complicit in the executions were never brought to justice, although efforts have continued well into the 21st century. Kang Kek Iew (Comrade Duch), the overseer of s-21, was charged with crimes against humanity in 2007.
The term "killing fields" was coined by Dith Pran, a Cambodian journalist who lived under the Khmer Rouge regime for over four years before escaping to the United States.<ref>http://www.msnbc.msn.com/id/23867336</ref>