Sexy Russian spy Anna Chapman's boss was working for us. The head of Russia's spy operations in America defected just before he betrayed Chapman and her nine fellow sleeper agents last summer -- and the Kremlin has ordered a hit team to kill him as revenge, according to a bombshell report yesterday. Senior officials in Russian President Dmitry Medvedev's government said the double agent -- identified only as "Colonel Shcherbakov" -- was a devastating blow to Russia's SVR intelligence agency and touched off a probe.