Wikipedia Info on Fahrenheit 451 (Writing in red is my commentary)

1. Bradbury stated that he wrote Fahrenheit 451 because of his concerns at the time (during the McCarthy era) about the threat of book burning in the United States. Being horrified by censorship of books during the holocaust, he is like a predictor of futures because he is sure that there will come a day when books will be burnt again. He references to the burning of the Bible in the uncensored version of Fahrenheit 451.
2.  She (Clarisse) is unpopular among peers and disliked by teachers for asking "why" instead of "how" and focusing on nature rather than on technology. That is ironic because teachers should want their students to question things, that's how we learn. That hasn't happened yet but we can foresee that some day in the future.
3. Captain Beatty is Montag's boss. Once an avid reader, he has come to hate books due to their unpleasant content and contradicting facts and opinions. Like many people in the dystopian society in Fahrenheit 451, Captain Beatty doesn't want to hear that his opinion is wrong and by reading those books that contradict each other he would be condoning it which nobody wants to do in that fictional era.
4. Bradbury was horrified by the Nazi book burnings and later Joseph Stalin's campaign of political repression, the "Great Purge", in which writers and poets, among many others, were arrested and often executed. He predicts a third world war of sorts where book burning will reoccur unless we put down our technology every now and then and actually learn a thing or two about the past and how not to repeat it.
5. Among the changes made by the publisher were the censorship of the words "hell", "damn", and "abortion"; the modification of seventy-five passages; and the changing of two episodes. In the 21st century, it's perfectly acceptable to use such language whereas back in the late 50's it was not and people were shocked when authors included these types of words in their writing.
6. Bradbury described himself as "a preventor of futures, not a predictor of them." He did not believe that book burning was an inevitable part of our future, he wanted to warn against its development. In a later interview, when asked if he believes that teaching Fahrenheit 451 in schools will prevent his totalitarian vision of the future, Bradbury replied in the negative. Rather, he states that education must be at the kindergarten and first-grade level. If students are unable to read then, they will be unable to read Fahrenheit 451.In terms of technology, Sam Weller notes that Bradbury "predicted everything from flat-panel televisions to iPod earbuds and twenty-four-hour banking machines." Ray Bradbury was obviously right about these three things that we gained in our modern world of technology, that proves what he writes in somewhat true therefore it;s a positive thing to read books so we don't become exactly like Fahrenheit 451 because it looks like we are already on that track. Hopefully I die before our country gets to that point.