The filing came in a discrimination lawsuit filed in 2000 by 10 black Secret Service agents, The New York Times reported.
One 2003 e-mail joked about the Rev. Jesse Jackson and his wife being on an airplane hit by a missile. The e-mail referred to Jackson as the "Righteous Reverend."
Lawyers for the plaintiffs said another e-mail -- containing a crude joke about sex illustrated with a picture of a naked black man and white woman -- was sent by Donald White, now head of the presidential protective detail, to Kurt Douglass, agent in charge of the Cincinnati office.
The government missed a March deadline for turning over the e-mails by a month, the newspaper said. Lawyer E. Desmond Hogan said he was "shocked but not surprised" by the delay.
"The government's delay follows a pattern of the Secret Service stonewalling plaintiffs and ignoring court orders, depriving African-American agents of the fundamental evidence of race discrimination that is key to their claims," he said.
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