the use of humor, irony, exaggeration, or ridicule to expose and criticize people's stupidity or vices, particularly in the context of contemporary politics and other topical issues.
If the character starts and ends in the same place, the plot has gone in a circle. For example, if Charlie was having problems with his teacher at the beginning of the story, and the story talks about the many weeks he has tried to fix these problems, yet the story ends with him still not resolving these problems, the plot had gone in a circle. There is not resolution, no ending, no fix.
At the time when John F Kennedy delivered his inaugural address the US and the US were locked in the cold war and people were concerned that the world might be destroyed by nuclear weapons.
