How did Cold War-era spies get “the goods”?

Just ask Kristie Macrakis. The Washington Times ran a recent story on a books about spying in the era of the Iron Curtain — both sides, in fact. On the East German side, they discuss Seduced by Secrets.
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Joe Goulden
Meanwhile, a third of the world away, the East German spy agency, STASI – formally [...]