WATCH VIDEOS | FLIGHT 93 REMEMBERED | Heroes honored during solemn observance

SHANKSVILLE, Pa. – The annual ceremony at Flight 93 National Memorial that honors the lives lost during the Sept. 11, 2001, terrorist attacks has become a more subdued event as years have passed.

High-ranking federal officials, including presidents of the United States, often attended in the past, drawing national media attention, strict security and throngs of visitors to the site.