Here's a video that Al-Jazeera just posted up on Twitter - recorded only hours ago from Latakia in Syria it features a man investigating a bomb, which he says is TNT, which has failed to completely explode.
He takes it apart and picks out heavy screws, and even sheets of metal that were packed inside the casing ready to act as shrapnel. The intent was to tear people apart. Kill them and maim them.
Such is the nature of war. The video doesn't tell us anything we didn't know but it is, perhaps, a welcome reality check on what people are facing right now.