"I understand about this idea of terror and what it means to Americans and this idea that we can't just walk around free like we did; life has changed"

In this quote, Johnnie Cochran is acknowledging the impact of the principle of fear on Americans and how it has actually changed their way of living. He acknowledges that the fear of potential hazards has actually triggered people to change their behavior and be more cautious in their everyday activities. This concept of not having the ability to easily move without fear is a substantial shift from the way things used to be. Cochran's words also recommend that this modification is not something that can be easily reversed, as it has actually ended up being implanted in the American psyche. In general, the quote highlights the enduring impacts of horror on society and the need to adjust to a new truth.