The New Censorship.
"The country in which so much interest centres may be briefly described. From near —— to —— and onwards in a south-easterly direction there is a low range of chalky hills, closely resembling our South Downs. There is no harm in saying definitely that not a German is on this line."
Daily Telegraph.
No apparent harm, but you can't be too careful. If the news gets round to the Germans that they are not there, they might at once set about to correct this defect.