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The United States Secret Service uses code names for U.S. presidents, first ladies, and other prominent persons and locations.〔(【引用サイトリンク】title=Junior Secret Service Program: Assignment 7. Code Names )〕 The use of such names was originally for security purposes and dates to a time when sensitive electronic communications were not routinely encrypted; today, the names simply serve for purposes of brevity, clarity, and tradition. The Secret Service does not choose these names, however. The White House Communications Agency assigns them. WHCA was originally created as the ''White House Signal Detachment'' under Franklin Roosevelt. The WHCA, an agency of the White House Military Office, is headquartered at Joint Base Anacostia-Bolling and consists of six staff elements and seven organizational units. WHCA also has supporting detachments in Washington, D.C. and various locations throughout the United States of America. According to established protocol, good codewords are unambiguous words that can be easily pronounced and readily understood by those who transmit and receive voice messages by radio or telephone regardless of their native language. Traditionally, all family members' code names start with the same letter.〔(2008-11-13) ("Obama chooses 'Renegade' as his Secret Service code name (while Bush gets to keep 'Trailblazer')" ), Daily Mail. Retrieved 2010-07-08.〕 The codenames change over time for security purposes, but are often publicly known. For security, codenames are generally picked from a list of such 'good' words, but avoiding the use of common words which could likely be intended to mean their normal definitions. ==Presidents of the United States and their families== * Woodrow Wilson * * Edith Wilson – Grandma〔(''One Nation Under Sex: How the Private Lives of Presidents, First Ladies and Their Lovers Changed the Course of American History'' )〕 *Franklin D. Roosevelt – * *Eleanor Roosevelt – Rover〔(【引用サイトリンク】url=http://www.pbs.org/wgbh/americanexperience/features/transcript/fdr-transcript/ )〕 * Harry S. Truman – General〔 or Supervise〔(The Secret Service of Alan Kahn By Steven Scher )〕 * * Bess Truman – Sunnyside〔〔〔 * Dwight Eisenhower – Scorecard〔 or Providence〔〔〔 * * Mamie Eisenhower – Springtime〔〔〔〔〔 * John F. Kennedy – Lancer〔〔〔〔 * * Jacqueline Kennedy – Lace〔〔〔 * * Caroline Kennedy – Lyric * * John F. Kennedy, Jr. – Lark * * Rose Kennedy – Coppertone〔〔 * * Ethel Kennedy – Sundance〔 * Lyndon Johnson – Volunteer〔〔〔 * * Lady Bird Johnson – Victoria〔〔〔〔(Caesar died in Dallas )〕 * * Lynda Bird Johnson – Velvet〔〔(Lynda Out of the Woods )〕 * * Luci Baines Johnson – Venus〔〔 * Richard Nixon – Searchlight〔〔〔〔〔 * * Pat Nixon – Starlight〔〔 * * Patricia Nixon Cox – Sugarfoot〔 * * * Edward F. Cox – Seminole〔 * * Julie Nixon Eisenhower – Sunbonnet〔〔 * * * David Eisenhower – Sahara〔 * Gerald Ford – Passkey〔〔 or Pass Key〔 * * Betty Ford – Pinafore〔〔〔(Mrs Ford tells story different than Ron Nessen Lakeland Ledger – May 18, 1978 )〕 * * Susan Ford – Panda〔〔〔(Susan Ford serious about photography job )〕 * * Michael Ford – Professor〔 * * Jack Ford – Packman〔 * Jimmy Carter – Lock Master〔 or Deacon〔〔〔〔 * * Rosalynn Carter – Lotus Petal〔 or Dancer〔〔〔 * * Amy Carter – Dynamo〔〔 * * Chip Carter – Diamond〔 * * Jack Carter – Derby〔 * * Jeff Carter – Deckhand〔 * Ronald Reagan – Rawhide〔〔〔〔 * * Nancy Reagan – Rainbow〔〔〔 * * Maureen Reagan – Rhyme,〔 Rosebud〔 * * Michael Reagan – Riddler〔〔 * * Patti Davis – Ribbon〔〔 * * Ron Reagan – Reliant〔〔 * * Doria Reagan – Radiant〔〔 * George H. W. Bush – Timberwolf〔〔〔 * * Barbara Bush – Snowbank〔 or Tranquility〔〔 * * Marvin Bush – Tuner〔〔 * * Neil Bush – Trapline〔〔 * * Jeb Bush – Tripper〔〔 * * Dorothy Bush – Tiller〔 * Bill Clinton – Eagle〔〔 * * Hillary Rodham Clinton – Evergreen〔〔 * * Chelsea Clinton – Energy〔 * * Roger Clinton - Headache * George W. Bush – Tumbler,〔〔〔 〕 later Trailblazer〔〔〔 * * Laura Bush – Tempo〔〔〔 * * Barbara Bush – Turquoise〔〔 * * Jenna Bush – Twinkle〔〔〔 * Barack Obama – Renegade〔〔〔〔 * * Michelle Obama – Renaissance〔〔 * * Malia Obama – Radiance〔〔 * * Sasha Obama – Rosebud〔〔〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Secret Service codename」の詳細全文を読む スポンサード リンク
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