Designer Baby

I believe that genetically enhancing a baby is wrong. Although creating a new baby does save another child's life, parents aren't necessarily creating the child out of love for them. For example, Adam Nash was created to save the life of his sister, Molly. They took bone marrow from him and used it for Molly. Their reason for creating Adam was to save Molly from fatigue and blood disorders. Adam will now have to wonder for the rest of his life if he was made out of love, or just the for the love of his sister.

What would I do if somebody told me the holocaust never happened?

If someone told me the holocaust didn't occur, I would have to disagree with them. Many people who are in denial of the concentration camps believe that the gas chambers didn't exist. That can be proven false very simply. Take a trip to where auschwitz once stood. The crematories are still there. You are able to see that these death camps weren't just some story.
Another aspect that many holocaust distortion believers are guilty of is manipulating facts. To manipulate a fact, you gave to know the truth first. Obviously these believers know the truth, but they are too stubborn to admit they're wrong and deal with the fact that it did happen. If they don't learn from history, then they are doomed to repeat it.