In "Harrison Bergeron," Vonnegut includes the character of Diana Moon Glampers, the Handicapper General, to represent the real dangers of an oppressive government.
In a society that is supposed to be completely equal, Diana Moon Glampers stands out as someone who is obviously pulling the strings. She stops at nothing to fulfill her goals - she shoots people dead without even thinking about it only if they disagree with her. Vonnegut wanted to portray her as an embodiment of a government that controls everything, and a place where people don't get a say in anything