The NSA tapped world leaders for US Geopolitical Interests, including a conversation between Netanyahu-Berlusconi over the U.S.-Israel Relations. WikiLeaks published a collection of highly classified documents that reveals the NSA targeted world leaders. One of the documents, reports eavesdropping activities conducted by the US intelligence that spied on the communication between the German Chancellor Angela Merkel and UN Secretary-General Ban Ki-moon on climate change negotiations. Wikileaks also revealed that espionage on the Chief of Staff of UN High Commissioner for Refugees (UNHCR), an activity that was conducted by US intelligence for a for a long time, the spies intercepted targeting his Swiss phone.”]
Source: https://securityaffairs.co/wordpress/44816/intelligence/nsa-tapped-world-leaders.html