Answer:
understatement : "a little busy"
It's an understatement because this person would be more than a little busy, because of the amount of work.
HYPERBOLE would be considered exaggeration...this can be confusing. :)
Answer:
But progress is not foreordained. The key is freedom—freedom of thought, freedom of information
Perhaps most exciting are the winds of change that are blowing over the People's Republic of China
And that's why it's so hard for government planners, no matter how sophisticated, to ever substitute for millions of individuals
No, I don't think a comma is necessary in this sentence.
