In this statement, Lawrence Krauss very respectfully gave William Lane Craig a science lesson and told him to stop being dishonest. It was something that was needed and while I do not think it will change William Lane Craig's mind, it does show that people are tired of dishonesty. It is a scientist explaining the scientific method, and not the scientific method explained by philosophers who need to redefine it in a way to make their arguments work. I think its difficult sometimes for atheists to say these things, because despite popular belief been an asshole is not nice. More so when they person you calling a liar is not a bad person, or seems to not be a bad person.
Here is the opening statement in the first debate.: Life, the Universe and Nothing: Has science buried God?(Watch from 21:00 to 45:00) From 38:00 is the real good stuff.
Here is the third debate: Life, the Universe and Nothing: Is it reasonable to believe there is a God? (21:00 to 44:00 )