Actually, and sadly, what Kerry says explains the reaction to the latest attack. I do think most French figured that Hebdo had it coming to them, for daring to make fun of Islam.
In this case the French are literally mad, and will stay mad for another 5 days or so...and then, as politicians in Europe and the US say, they will calm down and things will get back to normal, and the re-population effort can again pick up momentum.
Yep.