Former top Defense Department weapons testers are concerned a new bureaucratic shake-up, combined with the possible departure of Senate Armed Services Committee Chairman John McCain (R-AZ), could weaken their former office’s influence on decisions to procure multibillion-dollar weapon systems. The former officials' shared worry stems, in part, from a little-noticed paragraph near the bottom of a new 31-page report the Pentagon recently sent Congress. The report details plans to eliminate the office of the under secretary for acquisition, technology and...