Answer: see below
Step-by-step explanation:
In a speech given on June 11, 1963, Kennedy addresses his fear that the nation might erupt in violence. He does so by acknowledging the ways in which he is personally responsible for the current situation and taking responsibility for his own actions. He also acknowledges that there are many people who disagree with him and his policies but are not violent about it.
While I think his approach is effective at making him seem like a more human figure, I don't think it's particularly effective at addressing the real concerns of those who were worried about violence. It's unclear how much Kennedy actually understands these concerns and what they are based on—or if he simply doesn't want to acknowledge them.