. >> alan moskin: gonna hook me up again, huh?n, who isn't a holocaust survivor. he was a liberator. >> moskin: entering that camp was the most horrific sight i've ever seen or ever hope to see the rest of my life. >> stahl: moskin was an 18-year- old private when his army unit liberated a little-known concentration camp called gunskirchen. >> moskin: there was a pile of skeleton-like bodies on the left. there was another pile of skeleton like bodies on the right." those poor souls" that's the term my lieutenant kept screaming, "oh my god, look at these poor souls." >> stahl: each of alan moskin's answers is then isolated by a team of researchers at the shoah foundation office. >> moskin: i remember the expression and the attitude of all of us, ¡what in the freak? what is this? god almighty. >> stahl: ...who add into the system a variety of questions people might ask to trigger that response. >> maio: for every question that we asked, there are 15 different ways of asking the same question. >> stahl: and that's fed in? >> maio: an