Botched CIA operations may have handed Iran vital information on how to make nuclear weapons and betrayed the identities of America's spies in the country, according to a new book on US intelligence. The latest account of American intelligence failures includes details of how the CIA allegedly tried to slip Teheran some Russian designs for an atomic bomb, which contained hidden flaws that would have made any device inoperable. The Iranians, however, were tipped off by the very agent sent to give them the documents. In a separate incident, the book claims a CIA officer mistakenly sent an Iranian agent...