U.S.

Associated Press
Nate Siegert of the U.S. Forest Service peels bark from an ash tree looking for signs of infestation from the emerald ash borer in Rhinebeck, N.Y., on Thursday, April 12, 2012.  The invasive beetle that has destroyed tens of millions of ash trees over the past decade has been found east of the Hudson River for the first time, marking its closest known threat to New England. (AP Photo/Mike Groll)

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