(Editor's Note: This story has been updated with a statement from a Navy spokesman.) A new RAND Corp. study suggests the Navy's methods for gauging the readiness of its strategic sealift fleet is inherently problematic and calls into question whether those ships could respond to a large-scale contingency. The chief of naval operations' staff requested the study, published Aug. 8 and written by RAND researchers Bradley Martin and Roland Yardley, after the Navy noticed a significant difference between the...