Question: What was the nickname of the man who objected Sidney Osborne Bufton in the Pathfinder project?

full_context: Document 1: Albert Pierrepoint: Albert Pierrepoint ( ; 30 March 1905 – 10 July 1992) was a long-serving hangman in England. He executed at least 400 people, including William Joyce ("Lord Haw-Haw") and John Amery. In Germany and Austria, after the Second World War, he executed some 200 people who had been convicted of war crimes. In England, Pierrepoint hanged Timothy Evans for a crime committed by his neighbour John Christie, who was also hanged by Pierrepoint.
Document 2: Robert Saundby: Air Marshal Sir Robert Henry Magnus Spencer Saundby {'1': ", '2': ", '3': ", '4': "} (26 April 1896 – 25 September 1971) was an RAF officer whose career spanned both World War I and World War II. He distinguished himself gaining five victories during World War I, and was present during the air battle when Lanoe Hawker was shot down and killed by Manfred von Richthofen, the "Red Baron". He is chiefly remembered for his role as Deputy AOC in C Bomber Command under Sir Arthur 'Bomber' Harris during the latter part of World War II.
Document 3: Hubert Raymond Allen: Hubert Raymond Allen, (19 March 1919 – 31 May 1987) was a Royal Air Force (RAF) officer and commentator on defence matters. He fought during the Battle of Britain and was an flying ace of the Second World War, scoring 8 victories. Following his retirement from the RAF as a wing commander in 1965, Allen wrote several controversial books and articles on air power. He criticised RAF Air Staff policies before and during the Second World War. In contrast to the conventional narrative account, he maintained that during the Battle of Britain naval rather than air power was the crucial factor. His opinions clashed with mainstream opinion of the RAF's role, and with the views of many air historians, but his viewpoint received some support and significant attention.
Document 4: Oswald Mosley: Sir Oswald Ernald Mosley, 6th Baronet of Ancoats ( ; 16 November 1896 – 3 December 1980) was a British politician who rose to fame in the 1920s as a Member of Parliament and later in the 1930s became leader of the British Union of Fascists (BUF).
Document 5: Arthur Tedder, 1st Baron Tedder: Marshal of the Royal Air Force Arthur William Tedder, 1st Baron Tedder, {'1': ", '2': ", '3': ", '4': "} (11 July 1890 – 3 June 1967) was a senior Royal Air Force commander. He was a pilot and squadron commander in the Royal Flying Corps in the First World War and he went on to serve as a senior officer in the Royal Air Force during the inter-war years when he served in Turkey, Great Britain and the Far East. During the Second World War, as Air Officer Commanding RAF Middle East Command, Tedder directed air operations in the Mediterranean and North Africa, including the evacuation of Crete and "Operation Crusader" in North Africa. His bombing tactics became known as the "Tedder Carpet". Later in the war Tedder took command of Mediterranean Air Command and in that role was closely involved in the planning of the Allied invasion of Sicily and then the Allied invasion of Italy. When Operation Overlord—the invasion of France—came to be planned, Tedder was appointed Deputy Supreme Commander at Supreme Headquarters Allied Expeditionary Force under General Eisenhower. After the war he served as Chief of the Air Staff, in which role he advocated increased recruiting in the face of many airmen leaving the service, doubled the size of RAF Fighter Command and implemented arrangements for the Berlin Airlift in 1948. After the war he held senior positions in business and academia.
Document 6: Erich Hartmann: Erich Alfred Hartmann (19 April 1922 – 20 September 1993), nicknamed "Bubi" ("The Kid") by his German comrades and "The Black Devil" by his Soviet adversaries, was a German fighter pilot during World War II and the most successful fighter ace in the history of aerial warfare. He flew 1,404 combat missions and participated in aerial combat on 825 separate occasions. He claimed, and was credited with, shooting down 352 Allied aircraft—345 Soviet and 7 American—while serving with the "Luftwaffe". During the course of his career, Hartmann was forced to crash-land his fighter 14 times due to damage received from parts of enemy aircraft he had just shot down or mechanical failure. Hartmann was never shot down or forced to land due to enemy fire.
Document 7: Hugh Dowding: Air Chief Marshal Hugh Caswall Tremenheere Dowding, 1st Baron Dowding, (24 April 1882 – 15 February 1970) was an officer in the Royal Air Force. He served as a fighter pilot and then as commanding officer of No. 16 Squadron during the First World War. During the inter-war years he became Air Officer Commanding Fighting Area, Air Defence of Great Britain and then joined the Air Council as Air Member for Supply and Research. He was Air Officer Commanding RAF Fighter Command during the Battle of Britain, and is generally credited with playing a crucial role in Britain's defence, and hence, the defeat of Adolf Hitler's plan to invade Britain. He was unwillingly replaced in command in November 1940 by Big Wing advocate Sholto Douglas.
Document 8: Bombing of Dresden in World War II: The bombing of Dresden was a British/American aerial bombing attack on the city of Dresden, the capital of the German state of Saxony, that took place during the Second World War in the European Theatre. In four raids between 13 and 15 February 1945, 722 heavy bombers of the British Royal Air Force (RAF) and 527 of the United States Army Air Forces (USAAF) dropped more than 3,900 tons of high-explosive bombs and incendiary devices on the city. The bombing and the resulting firestorm destroyed over 1600 acre of the city centre. An estimated 22,700 to 25,000 people were killed, although inflated casualty figures have been claimed over the years. Three more USAAF air raids followed, two occurring on 2 March aimed at the city's railroad marshaling yard and one small raid on 17 April aimed at industrial areas.
Document 9: Sir Arthur Harris, 1st Baronet: Marshal of the Royal Air Force Sir Arthur Travers Harris, 1st Baronet, {'1': ", '2': ", '3': ", '4': "} (13 April 1892 – 5 April 1984), commonly known as "Bomber" Harris by the press and often within the RAF as "Butcher" Harris, was Air Officer Commanding-in-Chief (AOC-in-C) RAF Bomber Command during the height of the Anglo-American strategic bombing campaign against Nazi Germany in the Second World War. In 1942, the British Cabinet agreed to the "area bombing" of German cities. Harris was tasked with implementing Churchill's policy and supported the development of tactics and technology to perform the task more effectively. Harris assisted British Chief of the Air Staff Marshal of the Royal Air Force Charles Portal in carrying out the United Kingdom's most devastating attacks against the German infrastructure and population, including the Bombing of Dresden.
Document 10: Rudolf Hess: Rudolf Walter Richard Hess (Heß in German; 26 April 1894 – 17 August 1987), was a prominent politician in Nazi Germany. Appointed Deputy Führer to Adolf Hitler in 1933, he served in this position until 1941, when he flew solo to Scotland in an attempt to negotiate peace with the United Kingdom during World War II. He was taken prisoner and eventually was convicted of crimes against peace, serving a life sentence until his suicide.
Document 11: Henry H. Arnold: Henry Harley "Hap" Arnold (June 25, 1886 – January 15, 1950) was an American general officer holding the grades of General of the Army and General of the Air Force. Arnold was an aviation pioneer, Chief of the Air Corps (1938–1941), Commanding General of the U.S. Army Air Forces, the only U.S. Air Force general to hold five-star rank, and the only officer to hold a five-star rank in two different U.S. military services. Arnold was also the founder of Project RAND, which evolved into one of the world's largest non-profit global policy think tanks, the RAND Corporation, and one of the founders of Pan American World Airways.
Document 12: Operation Chastise: Operation Chastise was an attack on German dams carried out on 16–17 May 1943 by Royal Air Force No. 617 Squadron, subsequently publicised as the "Dam Busters", using a specially developed "bouncing bomb" invented and developed by Barnes Wallis. The Möhne and Edersee Dams were breached, causing catastrophic flooding of the Ruhr valley and of villages in the Eder valley; the Sorpe Dam sustained only minor damage. Two hydroelectric power stations were destroyed and several more were damaged. Factories and mines were also either damaged or destroyed. An estimated 1,600 civilians drowned: about 600 Germans and 1,000 mainly Soviet forced-labourers. The damage was mitigated by rapid repairs by the Germans, but production did not completely return to normal until September.
Document 13: Sidney Osborne Bufton: Air Vice Marshal Sidney Osborne Bufton, (12 January 1908 – 29 March 1993) was a senior commander in the Royal Air Force during the middle part of the 20th century. He played a major part in establishing the Pathfinder project, over the objections of Arthur Harris.
Document 14: Operation Anthropoid: Operation Anthropoid was the code name for the assassination of Schutzstaffel (SS)-"Obergruppenführer" and "General der Polizei" Reinhard Heydrich, head of the "Reichssicherheitshauptamt" (Reich Main Security Office, RSHA), the combined security services of Nazi Germany, and acting "Reichsprotektor" of the Protectorate of Bohemia and Moravia. The operation was carried out in Prague on 27 May 1942 after having been prepared by the British Special Operations Executive with the approval of the Czechoslovak government-in-exile. Wounded in the attack, Heydrich died of his injuries on 4 June 1942. His death led to a wave of merciless reprisals by German SS troops, including the destruction of villages and the killing of civilians. Anthropoid was the only successful assassination of a senior Nazi leader during World War II.
Document 15: Douglas Bader: Group Captain Sir Douglas Robert Steuart Bader, ( ; 21 February 1910 – 5 September 1982) was a Royal Air Force flying ace during the Second World War. He was credited with 22 aerial victories, four shared victories, six probables, one shared probable and 11 enemy aircraft damaged.
ground_truth: "Bomber"