The Nixon Library will present 23 tons of wreckage from the World Trade Center as a symbol of our national grief and resolve.

Remembering September 11, 2001 -- 20 Years After the Tragedy

The Richard Nixon Foundation will mark the 20th anniversary of the September 11, 2001 attacks with an outdoor commemoration ceremony.

Event includes 23 tons of wreckage from the World Trade Center as its stirring centerpiece.

The sacred steel will arrive at the Nixon Library via motorcade with escorts from the CHP, Orange County Sheriff's Department and Orange County Fire Authority.