It will do more than simply keep those memories alive.

WHITEHOUSE: President Obama Speaks at the National Museum of African American History and Culture Groundbreaking | The White House

So they're doing what they can to keep alive the memories of those who perished.

NPR: Remembrance, Reconciliation on Yom Hashoah

"It is our common responsibility to keep alive the memories and pass them on to the next generation, to maintain freedom and democracy and to do everything so that such injustices may never happen again, " he said.

BBC: Germany marks 50 years since Berlin Wall

He does not have the money or contacts to get his work recorded, so for now continues to go to the "Shrine of Love" to perform among friends and to keep the memories of his homeland alive.

BBC: Musicians flee Taleban for NYC

"We keep alive other people's memories, " says Mrs.

WSJ: A Newer Nostalgia

Bedeviled as they are by unwanted memories, images, nightmares and flashbacks that keep the terrifying reality of their experience emotionally alive for them, people with PTSD often go to heroic lengths to avoid anything in the personal or physical environment that reminds them of the trauma.

CNN: PTSD: Know the symptoms and when to get help