A leading Estonian marine expert with top security clearance was sentenced to three years in jail after pleading guilty to spying for Beijing. Tarmo Kõuts, 57, was arrested in September last year and has admitted to conducting espionage for a foreign state—charges that stop short of treason. He is the Estonian linked to Chinese espionage since the Baltic country broke from the Soviet Union in 1991. Kõuts was first recruited by Chinese military intelligence in 2018, according to Aleksander Toots, the deputy director of Estonia’s counterintelligence agency, Internal Security Service. Kõuts was motivated by “traditional human weaknesses” such as money, Toots told Delfi, a major Estonian outlet. The prosecutors confirmed that Kõuts had profited €17,000 (about $20,296) from the scheme, which they had confiscated from him. A woman who allegedly acted as an accomplice was arrested on the same day as Kõuts and is yet to face trial in court. …