. Two weeks before .
Any society will always include a small number of the deranged who pose a danger to the rest of us, but here is the difference: In this age of the Internet, such people can find one another, talk to one another and - no matter how twisted their view - find those who agree and sympathize with them.
As it was last week at the Pentagon, last month in Austin and last year atand after that , men with guns found encouragement - even validation - on the Internet where there is no accountability, no editor.
I would be the last person to restrict freedom of speech, but responsible people recognize there are limits. They were outlined in the landmark case in which Supreme Court Justice Oliver Wendell Holmes wrote that free speech did not include the right to falsely shout 'Fire!' in a theater and cause panic.
Yet there are no such limits on the Internet, where 'Fire!' is not only shouted but encouraged, and as we saw again last week, by some, taken to heart.
I don't know the answer to this, but we must start begin to think about the question.