Is it true Freedom of speech disappeared during World War 1?

During World War I, as is the case in most modern wars, limitations were placed upon "freedom" by the authorities in various ways. Certain territorial zones were kept off-limits to civilians, with some civilians being forcibly displaced from their homes for military and security reasons. Foodstuffs and other provisions were often restricted or simply removed from the market. Perhaps most importantly, news-sources were not always allowed to report freely on the events occurring during the war -- for the sake of morale or because of security-threats, real or imagined.