The United States registered an official protest with Israel against its ambassador to the United Nations, Dan Gillerman, for calling former U.S. President Jimmy Carter an "enemy of Israel" prior to Carter's recent visit to the region. A senior Foreign Ministry source said Saturday that the U.S. Embassy in Tel Aviv asked that Gillerman be made aware of the U.S. administration's dissatisfaction with the disrespectful comments about the former U.S. President.