Reverend Jesse Jackson Sr. and Congressman Jesse Jackson Jr. have filed a Freedom of Information request seeking all U.S. Secret Service communications relating to their family.The request came after reports that high-ranking Secret Service agents sent e-mails joking about the possible assassination of Jackson Sr. and his wife, Jacqueline. The message was about a missile striking a plane on which the Jacksons were traveling, saying it wouldn't be a great loss or an accident. "That's outrageous. We reject it and found it very disturbing. And I want to get to the bottom of whoever is cracking these kinds of jokes at the U.S. Secret Service," said Jackson, Jr., (D) Illinois. The messages came to light after African American Secret Service agents filed a discrimination lawsuit against the agency. The suit revealed a number of e-mails that included racially derogatory remarks. The Secret Service says the Jackson e-mail came from someone outside the agency.