Diaries hoax. As a result, the newspaper insisted on verifying Vanunu's story with leading nuclear weapon experts, including former U.S. nuclear weapons designer Theodore Taylor and former British AWE engineer Frank Barnaby, who agreed that Vanunu's story was factual and correct. In addition, a reporter, Max Prangnell, was sent to Israel to find people who knew Vanunu and could verify his story. Prangnell verified Vanunu's backstory, meeting a few people at Ben-Gurion University who identified Vanunu from a photograph, as well as meeting neighbors and others who confirmed he had worked at the Dimona nuclear plant. Vanunu gave detailed descriptions of lithium-6 separation required for the production of tritium, an essential ingredient of fusion-boosted fission bombs. While both experts concluded that Israel might be making such single-stage boosted bombs, Vanunu, whose work experience was limited to material (not component) production, gave no specific evidence that Israel was making two-stage thermonuclear bombs, such as neutron bombs. Vanunu described the plutonium processing used, giving a production rate of about 30 kg per year, and stated that Israel used about 4 kg per weapon. From this information it was possible to estimate that Israel had sufficient plutonium for about 150 nuclear weapons. During his stay in Britain, the Sunday Times initially put Vanunu up in a hotel in London close to the newspaper's premises, but shortly afterward, he was moved to what was considered a safer location: a lodge near Welwyn, in rural Hertfordshire, which was in an obscure location and accessed by a narrow road. Hounam considered it an excellent hiding place. During one foray into London together with a Sunday Times journalist, Vanunu encountered an Israeli friend, Yoram Bazak, and his girlfriend Dorit on Regent Street. They agreed to meet later. When they met, Bazak intensely questioned Vanunu on his views towards Israel's defense policy, and during the conversation, Vanunu told Bazak about the possibility of him publicly revealing secrets from Dimona to the British press. Bazak responded with a menacing threat. Hounam speculated that Vanunu's meeting with Bazak was no mere coincidence and that Bazak had been recruited by Mossad in an attempt to discover Vanunu's motives and try to dissuade him. Vanunu later grew bored of rural Hertfordshire and asked for a new location in London, and he was booked in the first hotel he had stayed in under a false name. Hounam speculated that as Oscar Guerrero, who