Sen. John McCain (R-AZ) this week asked two government agencies, the Defense Department inspector general and several taxpayer watchdog groups to further review a possible Air Force lease of 100 767 Boeing air refueling tankers. McCain sent nearly identical letters to the IG, the Office of Management and Budget, the Congressional Budget Office and eight taxpayer groups. In the letters , McCain expressed his concern that the authority granted to the Air Force to pursue a lease in the fiscal...