Points give away, I don't need them any more

Read the excerpt from "declaration of conscience" by margaret chase smith. the exercise of these rights should not cost one single american citizen his reputation or his right to a livelihood nor should he be in danger of losing his reputation or livelihood merely because he happens to know someone who holds unpopular beliefs. who of us doesn't? otherwise none of us could call our souls our own. otherwise thought control would have set in. this excerpt contains an example of

Which tone best fits a business letter

What is the meaning of the word checking as it is used in this sentence from the second paragraph of the passage?