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"Obviously this is the kind of thing that I think folks think was quickly thrown together and maybe not researched, butut this is a 10-year effort on the part of these manufacturers that was luckily ready for this," Paisley said.

Butut her position at the Washington-based I.M.F. is on shaky ground, at a time when the organization faces questions over its participation in a multibillion-dollar bailout for Greece and uncertainty about the United States’ role in the organization.