WASHINGTON — World leaders battling a dire and deepening economic crisis vowed Saturday to cooperate more closely, keep a sharper eye out for red-flag problems and give bigger roles to fast-rising nations _ but kicked many hard details down the road for their next summit after President-elect Barack Obama takes office.
Perhaps as important as the modest concrete steps they took, the leaders of the planet's richest nations _ and some of the fastest-developing _ made clear their recognition of the...
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