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Beginning in the 1940s and continuing into the 1970s, the bureau investigated cases of espionage against the United States and its allies. Eight Nazi agents who had planned sabotage operations against American targets were arrested, and six were executed (Ex parte Quirin) under their sentences. Also during this time, a joint US/UK code-breaking effort (the Venona project)with which the FBI was heavily involvedbroke Soviet diplomatic and intelligence communications codes, allowing the US and British governments to read Soviet communications. This effort confirmed the existence of Americans working in the United States for Soviet intelligence. Hoover was administering this project but failed to notify the Central Intelligence Agency (CIA) until 1952. Another notable case is the arrest of Soviet spy Rudolf Abel in 1957. The discovery of Soviet spies operating in the US allowed Hoover to pursue his longstanding obsession with the threat he perceived from the American Left, ranging from Communist Party of the United States of America (CPUSA) union organizers to American liberals.
When did the FBI begin investigating espionage?
A: 1940s

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Michel Djotodia took over as president and in May 2013 Central African Republic's Prime Minister Nicolas Tiangaye requested a UN peacekeeping force from the UN Security Council and on 31 May former President Bozize was indicted for crimes against humanity and incitement of genocide. The security situation did not improve during JuneAugust 2013 and there were reports of over 200,000 internally displaced persons (IDPs) as well as human rights abuses and renewed fighting between Seleka and Bozize supporters.
Who became president in 2013?
A: Michel Djotodia

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The Saturday edition of The Times contains a variety of supplements. These supplements were relaunched in January 2009 as: Sport, Weekend (including travel and lifestyle features), Saturday Review (arts, books, and ideas), The Times Magazine (columns on various topics), and Playlist (an entertainment listings guide).
What is the name of the section of the Saturday edition of The Times that features travel and lifestyle?
A: Weekend

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Trading companies became active in Tuvalu in the mid-19th century; the trading companies engaged palagi traders who lived on the islands. John (also known as Jack) O'Brien was the first European to settle in Tuvalu, he became a trader on Funafuti in the 1850s. He married Salai, the daughter of the paramount chief of Funafuti. Louis Becke, who later found success as a writer, was a trader on Nanumanga from April 1880 until the trading-station was destroyed later that year in a cyclone. He then became a trader on Nukufetau.
In what century did trading companies arrive in Tuvalu?
A:
mid-19th