Communications Decency Acts I and II were both overturned because they violated the First Amendment right of free speech. Where do you draw the line between free speech and the right of a society to...

Communications Decency Acts I and II were both overturned because they violated the First

Amendment right of free speech. Where do you draw the line between free speech and the right of a society to monitor what its citizen view? Why do we say that users in a timesharing system have their own virtual machine?