The guy who killed Henry was not talking (on his album) about wonderful things. It was hatred and violence.

clearly disproportionate and can only breed more hatred and violence.

[L]e philosophe n'a jamais tué de prêtres et le prêtre a tué beaucoup de philosophes...

(The philosopher has never killed any priests, whereas the priest has killed a great many philosophers.)

Wars such as that which has occurred in Iraq only allow hatred, violence and terror to proliferate

Many of those people carrying those placards were clearly inciting violence or inciting hatred and that is against the law. It does not need any new glorification laws.

Human kind has to get out of violence only through nonviolence. Hatred can be overcome only by love. Counter-hatred only increases the surface as well as the depth of hatred.