Idi Amin Kampala suburb of Nakasero became the scene of torture and executions over the next few years. Other agencies used to persecute dissenters included the military police and the Public Safety Unit (PSU). Obote took refuge in Tanzania, having been offered sanctuary there by the Tanzanian President Julius Nyerere. Obote was soon joined by 20,000 Ugandan refugees fleeing Amin. The exiles attempted but failed to regain Uganda in 1972, through a poorly organised coup attempt. Amin retaliated against the attempted invasion by Ugandan exiles in 1972, by purging the army of Obote supporters, predominantly those from the Acholi and Lango ethnic
Alan Coren of children's books. One of his most successful books, "The Collected Bulletins of Idi Amin" (a collection of his "Punch" articles about Amin) was rejected for publication in the United States on the grounds of racial sensitivity. These Bulletins were later made into a comedy album, "The Collected Broadcasts of Idi Amin" with the actor John Bird. After the Tanzanian capture of Kampala in 1979 the American journalist Art Barrett discovered a copy of Coren's book on Idi Amin's bedside table. Coren's other books include "The Dog It Was That Died" (1965), "The Sanity Inspector" (1974), "All Except The Bastard"