I feel pretty comfortable drawing a straight line between the GOP and the terrible shooting at the Planned Parenthood in Colorado Springs.

The GOP not only encourages — or at least makes common cause with — persons who view armed conflict as an acceptable form of social control in this country, but it has encouraged — or at least made common cause with — persons who characterize Planned Parenthood as an evil abortion mill.

Why should we be shocked that an armed, deranged person would stage a murderous attack on an organization that has been calumnized by the GOP and its fellow travelers.

This is not that last episode of this kind.