Barack obama's peace envoy, George Mitchell, is back in his Middle East bailiwick after two months away, apparently hopeful he can get Israelis and Palestinians to agree to "terms of reference" that would let long-stalled negotiations resume. Both sides still balk at his draft document's latest wording. Mr Mitchell is begging Egypt, Jordan and the Saudis to help him nudge the Palestinians back to the table. There is now at least a chance they will succeed.
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