Yoko Ono, left, and her son Sean Lennon chat aboard a bus 

Yoko Ono, left, and her son Sean Lennon chat aboard a bus on the way to visit fracking sites in Pennsylvania,  Thursday, Jan. 17, 2013. They are on a 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 chat aboard a bus on the way to visit fracking sites in Pennsylvania, Thursday, Jan. 17, 2013. They are on a 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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