An 18-year-old from Minnesota was arrested and placed on electronic monitoring Friday for allegedly unleashing a version of the “Blaster” computer worm that infected at least 7,000 computers. Jeffrey Lee Parson was ordered by a U.S. Magistrate judge not to access the Internet or any other network connection as a condition of his release. Some experts say that it is time for the government to bolster a basic sense of stability in cyberspace that societies expect from their critical public resources.”]