[applause] good morning. you may be seated. i am jon jarvis, director of national park service, and i am humbled to be here this morning for the families of the heroes of flight 93 to dedicate this memorial to your loved ones. today we also recognize those who made this memorial to the passengers and crew of flight 93 a reality. people from this community, from the state, and across the nation who share an unwavering commitment to make this field in shanksville, pennsylvania, an eternal tribute to those whose unselfish actions spared the lives of so many. thousands of people had made the journey to be here in this solemn place, and millions more are watching or listening to the ceremony. please, welcome you all. let me also welcome several of our distinguished guests. speaker of the house john boehner [applause] members of the congressional delegation who are here with us as well [applause] there are many state elected officials as well representing the state of penns