This is easily the biggest news story of the week, and mainstream media have completely missed it. Essentially, by declaring all settlements illegal, including the Israeli presence in east Jerusalem, President Obama has reversed 50 years of American policy, that final borders must be determined by direct negotiations between the two parties, Jews and Palestinians. This resolution adopts the maximal Palestinian position that Israel must withdrawal to the Green Line set by the armistice of 1949. It is hard to understand why Obama would support such an extreme position, which is impractical and has no chance of ever being implemented. Why would Palestinians be prepared to negotiate concessions, if final status borders have already been determined by the UN Security Council?