If heading to Valley Forge National Historic Park is on your to-do list this summer, you might need to double check the schedule. Due to sequestration, parks like Valley Forge may have staffing and hours on the "chopping block." “Every park in the system would be affected, including treasured places like Gettysburg, Independence Hall and Valley Forge, and the local economies that depend on visitor spending would also suffer,” said Cinda Waldbuesser, senior Pennsylvania program manager for the National Parks Conservation Association in a recent release. “National parks are economic drivers for…