AT A CEREMONY during this week’s meeting of the Arlington County Board, veterans of the Advanced Research Projects Agency (ARPA) who worked at offices in Rosslyn between 1970-75 to develop the predecessor to the Internet, were on hand for the presentation of a plaque that will be posted at the site of their work. Left to right: Falls Church’s Bob Young, Arlington County Board chair Chris Zimmerman (holding a sign that spells out ‘ARPA’ in binary code), Dr. George Lawrence, Dr. Steve Lukasik, (the director of ARPA at that time), Dr. Eric Willis and Dr. Francis Niedenfuhr. (Photo: News-Press)