The National September 11 Memorial Museum has officially opened to the public with a ceremony capped off by the unfurling of the National 9/11 Flag.
Related video: WATCH: Obama ends Asia tour with pitch for alliance
The National September 11 Memorial Museum has officially opened to the public with a ceremony capped off by the unfurling of the National 9/11 Flag.
Related video: WATCH: Obama ends Asia tour with pitch for alliance