The golden rule of the 21st century is that digital activity is public and permanent. Richard Guerry, executive director of IROC2.org, stressed that rule to students and parents during presentations throughout the area last week. Guerry, who has been holding Montana tours during the last 13 years, held the talks in Wolf Point, Poplar, Culbertson, Froid, Richey and Plentywood last week. He