Here’s the full transcript, from the Washington Post; I’ll put up a video link if one becomes available.
Via John B. Judis at the New Republic, who had his own interpretation:
President Barack Obama’s speech Tuesday to the United Nations was his most significant foreign policy statement since becoming president. It showed he had clearly learned something from the recent “red line” fiasco in Syria. The speech also displayed what has always been the most attractive feature of Obama’s foreign policy, one that clearly sets him off from his predecessor—his willingness to court erstwhile enemies and adversaries, or to put it in negative terms, his not possessing what my former colleague Peter Scoblic called an “us versus them” view of the world….