Seeking tens of billions in additional defense spending, Defense Secretary Jim Mattis is also promising to bring organizational reforms to the Pentagon as members of Congress express concerns about whether the Defense Department is appropriately managing its budget. Mattis told the Senate Appropriations defense subcommittee March 22 that reforming the Pentagon's business practices is one of his top priorities "so I can come in front of you and confidently say we're spending the money that you're giving, that the American...