How do we account for the past year, almost nine decades after 'Guernica,' when all the boundaries of horror have been pulverized?

The German Luftwaffe’s bombing of Guernica acted as an example of the military strategy that would be used in World War II. The decision led to the resignation of Foreign Secretary Anthony Eden.

The past year revealed a world in shambles, one with tragic echoes to Pablo Picasso's famous tableau of mass slaughter carried out with modern efficiency. Like Picasso's generation, we must not avert ...