Donald Trump breaks the presidential mould so often that the usual questions about decision-making hardly apply. There is little point asking: Why is Mr Trump recognising Jerusalem as Israel's capital now? What is his plan for the Middle East? How does moving the US embassy from Tel Aviv fit into it? As his record shows, that is not the way Mr Trump works. Instead, the more relevant questions are: Does he even realise the significance of what he is doing? Does he understand the likely consequences of detonating explosive charges along the region's fault lines like this? It is quite possible he does not.
