What does the phrase later in life contribute to the text

Why was kennedy concerned about the use of nuclear weapons

I’ve given a lot of thought to what one of them should be, and the answer seems clear.

Read the following excerpt from the play a raisin in the sun by lorraine hansberry: johnson (this usa woman who decided long ago to be enthusiastic about everything in life and she is inclined to wave her wrist vigorously at the heigh of her exclamatory comments.): hello there, yourself! h’you this evening, ruth? which assumption about johnson is most likely true based on the stage direction? a. her enthusiasm is used to mask her fear of public places