In what ways is our society similar to the one described in Fahrenheit 451?
Our society can be seen as comparable to the one described in Bradbury's work in that there is an issue of censorship and social control evident even in the most "free" of countries. Consider the way that our nation reacted after the 9/11 attacks. While some may consider a slight invasion of privacy (i.e. phone call and email screenings) a reasonable price to pay for security, especially as it harms no one so long as they are doing nothing wrong, others consider the dictates of the Patriot Act to be outrageous invasions of personal freedom.
What local school board hasn't banned certain books from the school libraries? While there are some books (pornographic, sexually explicit, racially charged, etc.) that might make obvious choices for an exclusively adult or mature audience, there are some concerns that banning even one book, or censoring even one chapter might lead to a dangerous precedent, in that it establishes an avenue for banning more book and furthering the idea of forced censorship.
Bradbury's message is that once we relinquish certain amounts of freedom, more aspects of our freedom are sure to follow suit. This is similar to our modern society, whether it's a "free" society such as our own here in the U.S., or an Islamic-controlled theocracy such as the Taliban, Hezbollah, or Hamas.