328 • MANNINGHAM-BULLER, ELIZA
a new job, as head of the Radioactivity Section of the National Bu-
reau of Standards, where he remained until his retirement in 1980,
having become a naturalized citizen.
In 1961 Mann was approached socially by a Soviet diplomat, and
his subsequent meetings with him were reported to theFederal Bu-
reau of Investigationand monitored by them. According to Mann’s
1980 autobiographyWas There a Fifth Man?this contact was fully
authorized, but it was evidently misinterpreted by journalist Andrew
Boyle, who asserted inClimate of Treasonin 1979 that Mann had
been a Sovietmole. According to Boyle, the physicist had been a
spy and a friend and coconspirator ofAnthony Blunt, but had been
‘‘turned’’ and run as adouble agentby the CIA’s James Angleton.
In reality, while Mann had known both Philby andGuy Burgess,
he had met neitherDonald Macleannor Blunt. Having successfully
repudiated the allegations, Mann retired to Chevy Chase, Maryland,
and later moved to Baltimore, where he died in March 2001. In 2003
documents retrieved from theKGB archives suggested that Mann
may in fact have been a Soviet spy codenamedmallone.MANNINGHAM-BULLER, ELIZA.Appointeddirector-general of
the Security Servicein 1999, Eliza Manningham-Buller is the
daughter of Lord Dilhorne, a former attorney-general and lord chan-
cellor. She joined the Security Service in the 1970s after Oxford and
served assecurity liaison officerin Washington, D.C. While work-
ing in K Branch in 1983, she was responsible for conducting the in-
vestigation that identified a colleague,Michael Bettaney,asthe
source of a leak to theKGB’s Londonrezident,Arkadi Gouk.
MARKOV, GEORGI.The son of an officer in the Bulgarian army and
born in 1929 in Sofia, Georgi Markov was a successful novelist and
playwright in his own country before hedefectedto Italy in June
1969 and took up residence in London in 1971. As a student studying
chemical engineering, he had been a dissident, but after an arrest he
had joined the Communist party. His first novel,Men(1962), made
him a successful member of the Bulgarian regime’s governing elite.
During the following seven years, his novels and plays were received
with official approval, but after the 1968 invasion of Czechoslovakia,
Markov’s attitude changed and he was summoned by the party’s Cul-