By Sam Fowles The UK has forgotten the lessons of the Marshall Plan. Poverty breeds extremism, says Sam Fowles After the Second World War, President Truman tasked his secretary of state George Marshall with a twin mission. First, ensure that the extremism that led to Nazism in Germany and fascism in Italy didn’t happen again. Second, find a way to stop communism spreading in Europe once the war was over. Marshall did something radical for a politician: he studied history. He realised the common denominator in places where extremism flourished was poverty. In the 21 century, researchers have co…