US Vice President Richard Cheney was deeply suspicious of a 2002 probe into whether Iraq had tried to purchase uranium ore from Niger, as well as of a CIA operative’s personal role in the effort, newly released legal documents show. The documents, filed by special prosecutor Patrick Fitzgerald in federal court here, contain direct evidence that Cheney believed Valerie Plame, an undercover CIA operative at the time, might have helped engineer a trip to Niger by her husband, retired ambassador Joseph Wilson, on a mission not authorized by the White House. Full Story