A German delegation of intelligence officials arrive in Washington for talks at the White House.<br/> <br />The meeting follows claims the U.S. monitored Chancellor Angelea Merkel's mobile.<br/> <br />But just hours before new reports surfaced about the National Security Agency hacking into more communications.<br/> <br />The UN said it had received assurances from the U.S. but did not say whether the organisation had been spied on in the past.<br/> <br />(SOUNDBITE) (English) MARTIN NESIRKY, SPOKESPERSON FOR THE UNITED NATIONS SECRETARY-GENERAL, SAYING:<br/> <br />"I understand that the U.S. authorities have given assurances that United Nations communications are not and will not be monitored."<br/> <br />The NSA denied that it had targetted the Vatican and the Roman Catholic Church said it had no knowledge that the NSA had eavesdropped on phone calls.<br/> <br />But still visitors to the Vatican were outraged at the possibility of a spiritual leader being bugged.<br/> <br />(SOUNDBITE) (Italian) ITALIAN PILGRIM, EMANUELE C