An atheist who is wholly unfamiliar with the letters to the Romans and Galatians and Hebrews, as well as Acts 15 and the entire New Testament discussion of the relationship between the Old and New Covenants tries to play a game of gotcha with the grownups:
See, this is the problem with the New Atheists: they are so full of contempt for Christ that they have never bothered to find out what it is they are arguing against.