In early August 1946 Swedish Lt. Lennart Neckman of the Defense Staff's Air Defense Division saw something that was "without a doubt ... a rocket projectile". On August 14, 1946, the New York Times reported that Undersecretary of State Dean Acheson was "very much interested" in the ghost rocket reports, as was U.S. Army Air Forces intelligence as indicated nonpublicly by later documents (Clark, 246). Then on August 20, the Times reported that two U.S. experts on aerial warfare, aviation legend General Jimmy Doolittle and General David Sarnoff, president of RCA, arrived in Stockholm, ostensibly on private business and independently of each other. The official explanation was that Doolittle, who was now vice-president of the Shell Oil Company, was inspecting Shell branch offices in Europe, while Sarnoff, a former member of General Dwight D. Eisenhower's London staff, was studying the market for radio equipment. However, the Times story indicated that the Chief of the Swedish Defense Staff, made no secret that he "was extremely interested in asking the two generals' advice and, if possible, would place all available reports before them". (Carpenter chronology) Doolittle and Sarnoff were briefed that on several occasions the ghost rockets had been tracked on radar. Sarnoff was quoted by the N.Y. Times on September 30 saying that he was "convinced that the 'ghost bombs' are no myth but real missiles".