Revelers clink their beer mugs inside a beer tent on the last day of Oktoberfest in Munich. The festival drew some 6.9 million visitors this year.

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Yvonne, a cow that has lived in the wild since eluding a trip to the slaughterhouse in May, has foiled all attempts to capture her. Now officials say that she's not to be disturbed. Josef Enzinger/dapd hide caption

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A cow named Yvonne has eluded capture since escaping a German farm in May. She's been spotted roaming a forest, but searchers haven't been able to get close to her. Now an animal psychic has been called in. Josef Enzinger/dapd hide caption

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Reinhard Burger, president of the Robert Koch Institute, tells reporters in Berlin Friday that sprouts from a German farm are the cause of the country's massive foodborne illness outbreak. Michele Tantussi/AP hide caption

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President Obama and Chancellor Angela Merkel during the official arrival ceremony for the German leader at the White House this morning (June 7, 2011). Jewel Samad /AFP/Getty Images hide caption

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Greenhouses of the shuttered Gaertnerhof Bienenbuettel organic farm in Bienenbuettel, Germany. Health authorities in the German state of Lower Saxony closed the farm over worries that the vegetable sprouts grown there could be a source of E. coli outbreak that has infected more than 2,300 people. But preliminary tests came back negative. Joern Pollex/Getty Images hide caption

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A farmer holds cucumbers in a field in Malaga, Spain. Cucumbers from Spain have been eyed as the source of a disease outbreak in Germany. Jorge Guerrero/AFP/Getty Images hide caption

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