Sydney and Newcastle. Due to the inaccuracy of the submarines' range-finding equipment, coupled with the unstable firing platform of a submarine at sea, specific targeting was impossible. The intention of the submarine bombardment was to frighten the population of the target area. The failure of the majority of the shells to detonate may have had various causes. As the submarines fired armour-piercing shells, intended for use against steel ship hulls, the relatively softer brick walls may have failed to trigger the impact fuses. Sea water may have degraded the shells, which the Japanese had stored in deck lockers for several weeks. The age of the shells may also have been a factor; some of the shells recovered from the Newcastle bombardment were found to be of English manufacture: surplus munitions from World War I. In Sydney, fear of an impending Japanese invasion caused people to move west; housing prices in the Eastern Suburbs dropped, while those beyond the Blue Mountains rose significantly. The attack also led to a significant increase in the membership of volunteer defence organisations, and strengthening of defences in Sydney Harbour and Port Newcastle. Aftermath The papers did not publish news of the submarine attack until 2 June, as most of the attack occurred after the newspapers went to press on the morning of 1 June. Instead, on the morning after the attack, the front pages carried news of Operation Millennium, the Royal Air Force's first 1,000-bomber raid, although several newspapers included a small interior article mentioning the final reconnaissance flyover. The Federal Censor ordered total censorship of the events, issuing an official statement on the afternoon of 1 June which reported that the Allies had destroyed three submarines in Sydney Harbour, and described the loss of Kuttabul and the 21 deaths as the loss of "one small harbour vessel of no military value". Smith's Weekly finally released the real story on 6 June, and follow-up material in 13 June issue caused more political damage, prompting the Royal Australian Navy to attempt to charge the newspaper with releasing defence information. It was several days before the 21 dead sailors aboard Kuttabul could all be recovered. On 3 June, Muirhead-Gould and over 200 Navy personnel attended a burial ceremony for these sailors. On 1 January 1943, the Navy base at Garden Island was commissioned as in commemoration of the ferry and the lives lost. The Australians recovered the