Washington ? Valerie Plame, the diplomat’s wife whose secret resume was exposed in a newspaper column that eventually led to the indictment of Vice President Dick Cheney’s chief of staff, is leaving the CIA on Friday, people familiar with her plans said.

Plame, 42, worked undercover for the CIA tracking weapons proliferation but saw her clandestine career imperiled after she was identified as an agency operative in the summer of 2003 in a syndicated column by Robert Novak.

Friends said the mother of 5-year-old twins wanted to spend more time with her family, and that although she agreed to be photographed last year with her husband for an article about the case in Vanity Fair magazine, she had no plans to speak out.

There also has been speculation that she would file a civil lawsuit against the Bush administration contending that it leaked her identity and damaged her career.