According to Britain's The Guardian newspaper, the U.K. government has issued a D notice to a number of British media establishments including BBC, ITN and Sky News to refrain from publishing information that may "jeopardize national security". The Guardian, which pointed out that the warning was issued on June 7th, just a day after reports were published on former CIA agent Edward Snowden leaking documents, also drew on the fact that William Hague, who is responsible for GCHQ, the UK Government Communications Headquarters was not asked a single question in regards to the allegations that communication was monitored when he appeared on a program on BBC Radio 4 on Monday.

The Guardian article also reports that the D notice was marked "private and confidential: not for publication, broadcast or use on social media".