Yoko Ono, left, and her son Sean Lennon visit a fracking site 

Yoko Ono, left, and her son Sean Lennon visit a fracking site in Franklin Forks, Pa, Thursday, Jan. 17, 2013. They are on a bus tour of natural-gas drilling sites in northeastern Pennsylvania and plan to visit with residents who say they've been harmed by the controversial extraction process known as fracking.(AP Photo/Richard Drew)
Associated Press
Yoko Ono, left, and her son Sean Lennon visit a fracking site in Franklin Forks, Pa, Thursday, Jan. 17, 2013. They are on a bus tour of natural-gas drilling sites in northeastern Pennsylvania and plan to visit with residents who say they've been harmed by the controversial extraction process known as fracking.(AP Photo/Richard Drew)
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