. >> alan moskin: going to hook me up again, huh?r-old alan moskin, 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