aircraft used to transport prisoners are in Rendition aircraft. A claim that the black sites existed was made by The Washington Post in November 2005 and before by human rights NGOs. US president George W. Bush acknowledged the existence of secret prisons operated by the CIA during a speech on 6 September 2006. 2007 status of ghost detainees A 50-page Human Rights Watch report, "Ghost Prisoner: Two Years in Secret CIA Detention," contains a detailed description of a secret CIA prison from a Palestinian former detainee who was released from custody the previous year. Human Rights Watch has also sent a public letter to US president George W. Bush requesting information about the fate and whereabouts of the missing detainees. "President Bush told us that the last 14 CIA prisoners were sent to Guantanamo, but there are many other prisoners 'disappeared' by the CIA whose fate is still unknown," said Joanne Mariner, terrorism and counterterrorism director at Human Rights Watch. "The question is: what happened to these people and where are they now?" In early September 2006, 14 detainees were transferred from secret CIA prisons to military custody at Guantánamo Bay. In a televised speech on 6 September 2006, President Bush announced that with those 14 transfers, no prisoners were left in CIA custody. A further congressional investigation and a series of hearings were conducted within Congress. Then-candidate Obama also promised to close down Guantanamo Bay but did not follow through. 41 prisoners are still held at Guantanamo without US judicial processes followed for their detainments. Police training Before 1973, Administrations were principally concerned with a Communist threat of subversion, to be met with host country internal security forces such as the police. Police and military roles were blurred. US assistance to foreign police began in the 1950s, and increased in the early 1960s when the Kennedy administration became concerned about growing communist insurgent activities and established a public safety program within the Agency for International Development (AID) to train foreign police. By 1968 the United States was spending $60 million a year to train police in 34 countries in areas such as criminal investigation, patrolling, interrogation and counterinsurgency techniques, riot control, weapon use, and bomb disposal The United States also provided weapons, telecommunications, transportation, and other equipment. In the early 1970s, the Congress became concerned over the apparent absence of clear policy guidelines and the use of program funds