The new shape of American family life renders some existing policies obsolete and require reforms that pose new challenges for law and administration.

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"These things happen, in any walk of life you move on and decide to take on new challenges and we wish them the best of luck, " he added.

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But the exhibition also focuses on the specific innovations developed at Uruk and shows how they often arose in response to new challenges posed by urban life.

WSJ: The Ur-Metropolis | Uruk | Pergamon Museum | By A.J. Goldmann

Many times, this means that students are not prepared for the challenges a new life in the United States will present, away from their families and hired help.

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