water and cigarettes. Guarded closely, they were taken to a military barracks at Lingshui where they were interrogated for two nights before being moved to lodgings in Haikou, the provincial capital and largest city on the island. They were generally treated well, but were interrogated at all hours, and so suffered from lack of sleep. They found the Chinese food unpalatable as it included fish heads, but this later improved. Guards gave them decks of cards and an English-language newspaper. To pass the time and keep spirits up, Lts. Honeck and Vignery worked up humorous routines based on the television shows The People's Court, Saturday Night Live and The Crocodile Hunter. These were performed as they went to meals, the only time they were together. They gradually developed good relations with their guards, with one guard inquiring of them the lyrics for the song "Hotel California" by the Eagles. Three U.S. diplomats were sent to Hainan to meet the crew and assess their conditions, and to negotiate their release. They were first allowed to meet with the crew three days after the collision. U.S. officials complained about the slow pace of the Chinese decision. The 24 crew members (21 men and 3 women) were detained for 10 days in total, and were released soon after the U.S. issued the "letter of the two sorries" to the Chinese. The crew was only partially successful in their destruction of classified material, and some of the material they failed to destroy included cryptographic keys, signals intelligence manuals, and the names of National Security Agency employees. Some of the captured computers contained detailed information for processing PROFORMA communications from North Korea, Russia, Vietnam, China and other countries. The plane also carried information on the emitter parameters for U.S.-allied radar systems worldwide. The fact that the United States could track People's Liberation Army Navy submarines via signal transmission was also revealed to China. Letter of the two sorries The "Letter of the two sorries" was the letter delivered by the United States Ambassador Joseph Prueher to Foreign Minister Tang Jiaxuan of the People's Republic of China to end the incident. The delivery of the letter resulted in the release of the U.S. crew from Chinese custody, as well as the eventual return of the disassembled aircraft. The letter stated that the United States was "very sorry" for the death of Chinese pilot Wang Wei (),