Spying on the United Nations refers to acts of espionage committed by states against the United Nations. The UN claims that acts of espionage on it are illegal under a number of international treaties, including the 1946 Convention on the Privileges and Immunities of the United Nations, the 1947 agreement between the United Nations and the United States, and the 1961 Vienna Convention on Diplomatic Relations. In one notable incident, the US and other Western countries were found to be spying on the UN in March 2003, in the run-up to the Iraq War, and actual bugging devices were found inside the UN. In 2010, WikiLeaks revealed that US diplomats had been spying on UN leaders. On 25 August 2013, Der Spiegel revealed US National Security Agency secretly monitored the U.N.'s internal video conferencing system by decrypting during 2012. Spying by individual states United States The British newspaper The Observer published an investigative report revealing that the National Security Agency (NSA) of the United States was conducting a secret surveillance operation directed at intercepting the telephone and email communications of several U.N. Security Council diplomats, both in their offices and in their homes. This campaign, the result of a directive by National Security Advisor Condoleezza Rice, was aimed primarily at the delegations from Angola, Cameroon, Chile, Mexico, Guinea and Pakistan. The investigative report cited an NSA memo which advised senior agency officials that it was "'mounting a surge' aimed at gleaning information not only on how delegations on the Security Council would vote on any second resolution on Iraq, but also 'policies', 'negotiating positions', 'alliances' and 'dependencies' – the 'whole gamut of information that could give US policymakers an edge in obtaining results favourable to US goals or to head off surprises'. The authenticity of this memo has been called into question by many in the US and it is still unclear as to whether or not it is legitimate. A young translator for Britain's Government Communications Headquarters (GCHQ), Katharine Gun, leaked the memo to the Observer because she believed the war was illegal. She was fired from her job at GCHQ. Gun was arrested and accused of violating the Official Secrets Act 1989, but charges were dropped after the prosecution presented no evidence. In a 2009 confidential cable released by WikiLeaks the following year, US diplomats were directed to spy on UN leaders, including Secretary-General Ban Ki-moon, as well