Statements from those who liberated the concentration camps

In response to the following quote from the Reuters article on the current Holocaust Cartoon Exhibition in Iran (looking for a link to those cartoons if anybody has it):

“We wanted to challenge European taboos. Why should questioning the Holocaust be a taboo?” he said. “Why should anyone who talks about it (the Holocaust) be fined or jailed?”

CrimsonFisted brought to my attention a great link with lots of information on the Holocaust - good to use against the Holocaust deniers:

A Teacher's Guide To The Holocaust-Liberators

I have never felt able to describe my emotional reaction when I first came face to face with indisputable evidence of Nazi brutality and ruthless disregard of every shred of decency...I visited every nook and cranny of the camp because I felt it my duty to be in a position from then on to testify at first hand about these things in case there ever grew up at home the belief or assumption that the stories of Nazi brutality were just propaganda.

--General Dwight D. Eisenhower, Supreme Commander, Allied Forces, Europe, Letter to Chief of Staff George Marshall, April 12, 1945