This question seems to be taboo on the Belgian political scene and is only discussed from time to time by mainstream politicians in order to menace the other community, not unlike the atomic bomb threat during the Cold War context.[45] In particular, on September 6, 2010, after long lasting negotiation for the formation of the federal government, most leaders of the French-speaking Socialist Party simultaneously declared that they now consider the partition of Belgium as a realistic alternative solution to the Belgian problems.[46][47][48] This openly separatist point of view expressed by the French-speaking Socialists is analysed by some, including French-speaking liberals and most Flemish politicians, as an idle threat which aims at forcing progress in communitarian negotiations.[49] The heart of the problem is not the partition of Belgium but its federalization also called regionalization or communitarization.[6] This process of devolution, which began in the 1960s due to the pressure of the Flemish movement and, to a lesser extent, of the Walloon movement, is called in the Belgian context the state reform.