do you want to tell us about bernard schriever? >> he was six years old when he came over from germany in world war i. his mother brought him here two months before we declared war on germany. he grew up in texas and went into the army air corps and it was a protÉge of general arnold who was the founder of the u.s. air force during world war ii. he went to work on scientific -- bringing science into the air force. he used to utilize the science and saw this weapon would guarantee the peace because if we had it, we could deter the russians from doing anything that would trigger a nuclear war. and then we ended up creating a nuclear stalemate here it is referred to by the nuclear people as a neutral assured destruction. in other words, neither side could get a surprise attack on the other because they would destroy themselves in the same process. >> in the book, you talk about the resistance that mr. shaver and his team had putting this together. can you talk about a bit about this resistance? >> sure, because this is not about hardw