So, how to make sense of yesterday's tragic school shootings? The random assault of an unbalanced figure who was angry at life? An indictment of the ready availability of guns in this country? The inevitable effects of a culture where violence is fetishized and glorified? Well, if you're the folks at CBS Evening News, you open the floor to another viewpoint: It's all because of evolution and abortion. Get ready to be appalled! We never thought we'd say this, but maybe there is such a thing as too much free speech. Either way, there's too much "freeSpeech."