>Although many commentators have highlighted the lighter side of the concern, squirrels have proven consistently able to cripple power grids in the U.S. and other countries.[1][2] While some commentators emphasize the humorous aspect, they still imply that the danger posed to the electrical grid from squirrels is ongoing and concerning.[3][4]
It wouldn’t be WIKIPEDIA QUALITY without the same sentence repeated two or three times in a row with several citations each time.