Notorious CIA spy whose treachery caused the deaths of countless sources has died in federal prison

One of the most notorious spies in United States history, responsible for the arrest and eventual execution of numerous Soviet and Russian officials secretly working on behalf of the US intelligence ...
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“Made me feel like my brain was spaghetti”: 65 people share the creepiest displays of intelligence they’ve seen in others

Many of us like to think that we’re fairly smart. But it can be a very humbling experience when you’re in the presence of ...