The excerpt in Doctorow's Little Brother that caught my attention the most and interested me was the very beginning of Chapter 17. Mathematics is an integral part of our society and the technological advances behind its development. Also, isn't Cryptography just another application of math? So when Doctorow explained that the "government classed crypto as a munition and made it illegal for anyone to export or use it on national security grounds," it jumped out to me how ridiculous this statement was. The thought of having "illegal math" is like throwing people in jail because they were thinking creatively. The NSA has a standard maximum strength cipher and no one was allowed to create a cipher stronger than that standard. When a graduate student may have created a possible cipher in a paper, the NSA decided to ban the publishing of this paper. Reading about this in Little Brother made me realize the extent of our freedom of expression nowadays. If these crypto wars in the 19th century continued and the government prevailed, then modern advancements in technology would have never have even happened. I believe that we depend more on free cryptography than we may realize because it spawns innovative thinking and creations.