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The Russian spies were given a hero’s welcome when they returned home, and President Dmitry Medvedev bestowed them with the nation’s highest awards in October.

Russian Prime Minister Vladimir Putin, a 16-year veteran of the KGB, sang patriotic songs with the spies to celebrate their return. Mr. Putin warned in December that traitors come to a bad end and “whatever equivalent of 30 pieces of silver they get, it will get stuck in their throats.”

Unlike other members of the spy ring who have stayed out of the limelight, Ms. Chapman has basked in the attention. She has stripped down to lingerie for a photo shoot by the Russian edition of Maxim under the caption “For Your Eyes Only,” become the new celebrity face of a Moscow bank, joined the leadership of the youth wing of the main pro-Kremlin political party and hosted a TV program.