Analysis of information sources in references of the Wikipedia article "Appeasement" in English language version.
By and large, the Chamberlain government tried to persuade editors to operate an informal self-censorship. [...] Editors of leading national newspapers were asked to support Chamberlain's efforts to gain a peaceful settlement and to avoid critical comment. Yet the freedom enjoyed by the press ensured that total government control was never feasible and critical comment continued to appear.
Government pressure to restrict criticism of appeasement on BBC radio was far more successful. Radio coverage of foreign policy during the inter-war years was severely restricted through a combination of discreet pressure, self-censorship and guidance from Downing Street and the foreign office.
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