`` I 've worked for the National Security Agency , undercover , overseas . NSA document leaker Edward Snowden says he was trained as a spy . He worked for the CIA , NSA and Defense Intelligence Agency , he tells NBC 's Brian Williams . Score: 6 Snowden is in Russia to avoid prosecution in U.S. on espionage charges .
NSA document leaker Edward Snowden says he was trained as a spy . He worked for the CIA , NSA and Defense Intelligence Agency , he tells NBC 's Brian Williams . Score: 6 Snowden is in Russia to avoid prosecution in U.S. on espionage charges .