Hunting a C.I.A. Mole, Agents Gambled and Let a Suspect Return to China
By MATT APUZZO and ADAM GOLDMAN
Officials hoped it would help solve the mystery of the deaths of C.I.A. informants. Five years later, an arrest has been made but the mystery remains.
A spy who gradually achieves an important position within the security defences of a country.
‘a well-placed mole was feeding them the names of operatives’