Concert goers play in the mud during the All Points West music festival at Liberty State Park in Jersey City, New Jersey August 2, 2009. [Xinhua/Reuters]
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![Concert goers play in the mud during the All Points West music festival at Liberty State Park in Jersey City, New Jersey August 2, 2009. [Xinhua/Reuters]](http://images.china.cn/attachement/jpg/site1007/20090803/000bcdb95f1d0be0d00423.jpg "Concert goers play in the mud during the All Points West music festival at Liberty State Park in Jersey City, New Jersey August 2, 2009. [Xinhua/Reuters]")