Gleb Yakunin, a critic of the Moscow Patriarchate who was one of those who briefly gained access to the KGB archive documents in the early 1990s, argued that the Moscow Patriarchate was "practically a subsidiary, a sister company of the KGB". Critics charge that the archives showed the extent of active participation of the top ROC hierarchs in the KGB efforts overseas. George Trofimoff, the highest-ranking US military officer ever indicted for, and convicted of, espionage by the United States and sentenced to life imprisonment on 27 September 2001, had been "recruited into the service of the KGB" by Igor Susemihl (a.k.a. Zuzemihl), a bishop in the Russian Orthodox Church (subsequently, a high-ranking hierarch—the ROC Metropolitan Iriney of Vienna, who died in July 1999).