Industry.

• Position: Brass Tracks

Northrop Grumman Corporation's board of directors has elected Ronald D. Sugar--the current company's president and chief operating officer--as Northrop Grumman's next chief executive officer. Sugar, a 35-year defense industry veteran, assumes leadership of the nation's second largest defense contractor on April 1. In addition to his election as CEO, he will retain the position of company president. Sugar replaces Kent Kresa, who is retiring at the board's mandatory retirement age of 65.

Dennis McGinn, a retired vice admiral from the U.S. Navy, has joined Battelle as vice president for strategic planning and business development in Columbus, Ohio. McGinn will focus on Batelle's government market sectors. Previously, he was deputy chief of naval operations.

George P. Sigalos has joined Halliburton KBR Government Operations as director of government relations. Sigalos moves from the Contract Services Association of America, where he served as counsel to the president and director of public affairs.

L-3 Communications, Security and Detection Systems has appointed David Waters as vice president of cargo operations, in Woburn, Mass.

Science & Engineering Associates Inc. has named Matthew G. Henry as executive vice president of corporate development, with responsibility for the firm's defense and IT service group in New Orleans.

Robert J. Wilson has become vice president of business development for Electro-Radiation Inc., in Fairfield, N.J. He is responsible for sales and marketing activities in U.S. and international markets.

Stewart &amp...