Nice attack fallout: Was Bastille Day rampage preventable? (part 2)

A minute of silence has capped three days of national mourning after the Nice attack. It's a ritual that's alas become familiar, but this time with a context that's all its own. We look at what's described as the rapid radicalization of a man with a violent past, ISIS' claim of responsibility, and the political fallout from his rampage through the crowd at a fireworks display. Was it really avoidable? How stretched is the government since the two Paris attacks?