stories several pages apart, one of which reported the Japanese announcement and one of which related how Lanphier and his P-38 pilots on Guadalcanal had shot down three Japanese bombers over Bougainville and then flown home wondering if they had killed "some Jap bigwig" in the bombers. However, the Japanese did not draw any conclusions from this. Regardless of any cover story, intelligence officials in Great Britain were upset by the operation; not having suffered the Pearl Harbor attack themselves, they did not have the same visceral feelings towards Yamamoto and did not think that killing any one admiral was worth the risk to Allied codebreaking abilities against Japan. Indeed, Prime Minister Winston Churchill protested the decision to go ahead with the operation to Roosevelt himself. The American public did not learn the full story of the operation, including that it was based on broken codes, until September 10, 1945, after the conclusion of the war, when many papers published an Associated Press account. Even then U.S. intelligence was frustrated because they wanted to keep the secret longer as they were still debriefing Japanese intelligence officers and feared knowledge of the code-breaking would rush those officers into shame-driven suicide. Crash site The remains of Yamamoto's aircraft, 323 of the 705th Kokutai, lie in the jungle around from the town of Panguna, (). The crash site is around an hour's walk from the nearest road. Although the aircraft wreckage has been heavily scavenged by souvenir hunters, parts of the fuselage remain where it crashed. The site is on private land. Access was previously difficult as the ownership of the land was disputed. However, , it is possible for visitors to gain access to the site by prior arrangement. Part of one wing has been removed and is displayed, on permanent loan, at the Isoroku Yamamoto Family Museum in Nagaoka, Japan. One of the aircraft's doors is at the Papua New Guinea National Museum and Art Gallery. Credit controversy Although Operation Vengeance was notable for its target, there has been controversy about who shot down the admiral's aircraft. The issue began immediately after the mission when the U.S. military credited Thomas Lanphier with the kill. The captain claimed in his report that after turning to engage the escort Zeros and shooting the wings off one, he had flipped upside down as he circled back towards the two bombers. On seeing the lead