We have reached the crossroads. Our society needs to re-examine factors that can help prevent future catastrophic attacks on groups and individuals. We have, paradoxically, gone beyond democracy by allowing equal access to potentially lethal materials. Because we sometimes cannot predict future dangerousness, the necessary, albeit unfortunate, solution may be added controls. We need to confront reality with change.
Solutions exist, though they are difficult and often major.
We should not allow easy access to weapons of destruction, such as firearms of all kinds, as this loads the bases. Life should not become a fantasy where winning implies killing. Science and knowledge may be neutral and we must not confine such information to a few. Research should be reviewed and, if necessary, further undertaken to establish whether fame-seeking perpetrators of crimes should not have their names published by the media. Most important, we need to educate.