When I interviewed Dr Henry Kissinger during his trip to London in April, the former American Secretary of State said that President Bush and his colleagues needed what he described as a clear "concept" in their strategy for the Middle East. "I do not think they have yet settled on what the precise concept is," he added, in that wry, unmistakable baritone.Perhaps the President's speech on Israel and the Palestinian Authority last week will have answered Dr Kissinger's implicit question. The "concept" is simply this: the Palestinians can have a viable state, as far as America is concerned, but they...