On Sunday, Spanish Prime Minister Mariano Rajoy brushed off the unseemly show at Saturday's "unitary" march against terrorism. "We didn't hear some people's affronts", he said. Given his front row position for the Catalan separatist shouting and whistling, we can assume he was being diplomatic.

In an interview with El Nacional, also on Sunday, the First Minister of Catalonia, Carles Puigdemont, evaded questions regarding specific details of the upcoming October 1 independence referendum his regional government means to organise, but made it clear the vote would go ahead, barring state in...