The Senate Select Committee investigated the performance of the CIA and FBI in investigating the assassination of President Kennedy. The report found that both agencies failed to fully carry out their responsibilities. In particular, the CIA did not disclose its plots to assassinate Castro to the Warren Commission, and the FBI closed its file on Oswald despite unresolved issues and failed to properly investigate him before the assassination. The Committee found deficiencies in how the agencies handled the investigation but did not find evidence of a conspiracy to assassinate President Kennedy.