Flight 93 National Memorial in Shanksville marks 25 years since Sept. 11 attacks

Twenty-five years after Flight 93 crashed in Shanksville, Pennsylvania, families, first responders and visitors will gather to honor the 40 passengers and crew who fought back. Twenty-five years after Flight 93 crashed in Somerset County, families, first responders and visitors will gather to honor the 40 passengers and crew who fought back.