T. D. Allman (born 1944) is an American historian and freelance journalist known for his exposés of the CIA's secret involvement in the war in Laos, his interviews with world figures including Yasser Arafat, Helmut Kohl, Boris Yeltsin, Manuel Antonio Noriega, as foreign correspondent for the magazine, Vanity Fair and as an author of a historical accounts of Florida.
Allman is a Harvard University graduate (1966) and was a Peace Corps volunteer in Nepal. His first book, Unmanifest Destiny, which grew out of his doctoral thesis at Oxford University, dealt with many of the problems of American nationalism that still affect U.S. foreign policy. Another of his books on foreign policy added the phrase "Rogue State" to foreign policy discourse.
Allman's writing has appeared in The New Yorker, The New York Times, Esquire, The New Republic, Rolling Stone, and National Geographic, as well as in The Guardian, Le Monde, The Economist.
He is credited with the coining of the phrase "secret war". He rescued massacre victims in Cambodia, which led to his work being banned from The Washington Post. Later, as a contributing editor of Harper's, he aroused further controversy when he predicted that the U.S. defeat in Indochina had opened the door to a new epoch of Pacific Rim success for American values and economic systems. He also rebutted claims that the Earth was running out of oil and predicted that U.S. cities, far from being doomed, were on the verge of a "Yuppie renaissance". His reports from Iraq and on the Colombian drug wars received wide attention, as have his profiles of figures such as Dick Cheney.