,,,,when the world stopped turning?
The dedication/ceremony will include stories that will be told in the museum.
You can also join the conversation on social media using the hashtag #911Museum.
The museum devoted to the story of Sept. 11 tells it in victims' last voicemails, in photos of people falling from the twin towers, in the scream of sirens, in the dust-covered shoes of those who fled the skyscrapers' collapse, in the wristwatch of one of the airline passengers who confronted the hijackers.
By turns chilling and heartbreaking, a place of both deathly silence and distressing sounds, the National September 11 Memorial Museum opens this week deep beneath ground zero, 12 years after the terrorist attacks.