Russia’s network of spies has expanded in both size and influence since the early days of the full-scale invasion of Ukraine, the Wall Street Journal (WSJ) reported on March 3. The Russian Federal Security Service (FSB) faced disruption after intelligence reports underestimated Ukraine’s defense capacity, with Russian President Vladimir Putin placing many top officials under house arrest. Europe also expelled hundreds of diplomats suspected of espionage. Since then, WSJ reports, European security experts believe the FSB’s foreign intelligence apparatus has been able to replenish its ranks and …