Which theme is demonstrated in their excerpt from chicago by carl sandburg

What if puerto rico required all cement to carry a label with the location where it was manufactured and the date it was packaged? does that regulation discriminate against interstate manufacturers?

In mandatory military service in america one of the main arguments states that americans should share benefits and responsibilities of citizenship.

Would the essay be more effective in explaining the concept of dead reckoning if you knew from the beginning that ahmed is an ant?