The US authorities have assured the UN that its communications \"are not and will not be monitored,\" UN Spokesman Martin Nesirky told the daily press briefing on Wednesday. \"I can tell you that we were indeed in touch with the US authorities and I understand that the US authorities have given assurances that UN communications are not and will not be monitored,\" he said. \"The inviolability of diplomatic missions, including the UN has been well established in international law, and therefore all member states are expected to act accordingly,\" Nesirky added. Edward Snowden, the exiled former CIA employee and National Security Agency (NSA) contractor, disclosed to the press classified details of several top-secret United States Government mass surveillance programmes, including on the UN. Former Secretary-General Kofi Annan was subject to spying activities by the British Government in the nineties, when his security officers found out that his office was bugged.