Since 2003, human-rights investigators and news media reports have described a Boeing Business Jet as one of the most-dreaded planes in the Central Intelligence Agency's clandestine air force. The modified 737...is alleged to be the flagship of the CIA's "extreme rendition" squadron, ferrying suspected terrorists to secret agency prisons or countries where the U.S. is said to outsource torture...[A] British author and an ex-prisoner's attorney say that records uncovered by Spanish investigators show Boeing has a more direct role—planning and organizing the flights through a unit of its Seattle commercial airplane division [Jeppesen]. Boeing won't confirm or deny the claim. But the Spanish documents, and an investigation by Amnesty International and the Council of Europe, indicate Boeing was making arrangements for as many as 1,000 rendition flights through 14 countries by four CIA planes, including that notorious Boeing Business Jet.