PARIS — It's a new year in Paris, and the streets seem different. They are emptier, maybe a tad more somber than they were before Jan, 7, 2015, when a terror attack against editors of the satirical magazine Charlie Hebdo kicked off a year that none of us will ever forget.For weeks, I had been feeling the change. I began to pay more attention to the general mood in the city in the run-up to the toasts for 2016, trying to define what's different.
