In the event of a nuclear strike, President Joe Biden could be rushed to a little-known complex inside a mountain near Blue Ridge Summit, which sits along the Pennsylvania-Maryland state line, according to Newsweek. The Raven Rock Mountain Complex, which is near Blue Ridge Summit, Pennsylvania, "is this massive, hollowed-out mountain. It's a free-standing city ... with individual buildings, three-story buildings, built inside of this mountain,” journalist Garrett Graff, the author of the 2017 book Raven Rock: The Story of the U.S. Government's Secret Plan to Save Itself — While the Rest of Us Die, told NPR in 2017. “It...