troops for terrorism. Hersh reported that the CIA had given the pair tacit approval to oversee the sale of American technology. The story was followed up by Gerth at the Times through 1982, prompting reforms at the agency. Investigative books: 1980s and 1990s Hersh's 1983 book The Price of Power: Kissinger in the Nixon White House, which involved four years of exhaustive work and more than 1,000 interviews, was a best-seller and won him the National Book Critics Circle Award for Nonfiction. The 698-page book contained 41 chapters, including 13 devoted to Kissinger's role in Vietnam and the bombing of Cambodia; other topics included his role in the Chilean coup, the Indo-Pakistani War of 1971, domestic wiretapping, and the White House Plumbers, as well as Hersh's criticism of his former Times colleagues, such as Max Frankel and James Reston, for their proximity to him. One much-discussed allegation was that Kissinger, originally an advisor to Nelson Rockefeller in the 1968 Republican Party presidential primaries before his defeat to Nixon, had offered Democratic candidate Hubert Humphrey damaging material on Nixon before going to the Nixon campaign with secret information he had gathered from the Vietnam War's Paris peace negotiations. The book also alleges that Kissinger alerted Nixon to President Johnson's October 31, 1968, bombing halt 12 hours in advance, securing his position in the administration. The book is noted for its density of information and prosecutorial tone, and it has been credited with preventing Kissinger from returning to a government position during the Reagan administration. While writing the book, Hersh revisited his previous reporting on Edward M. Korry, the U.S. ambassador to Chile from 1967 to 1971. In 1974, Hersh had reported in the Times that Korry had known of the CIA's efforts to foment a coup. Korry, who had reacted to the claim with furious denial, demanded a front-page retraction in exchange for documents Hersh wanted for his book. The retraction, which Time called the "longest correction ever published", appeared on February 9, 1981. Peter Kornbluh, Chile expert at the National Security Archive, later judged based on declassified documents that Korry was unaware of CIA involvement. Also in the book was the claim that former Indian Prime Minister Morarji Desai had been paid $20,000 per year by the CIA during the Johnson and Nixon administrations. Desai filed a $50 million libel lawsuit against Hersh; when it went to trial in 1989,