Answer:
Many dark animals were around, and a creature (harry suspects it is voldemort) was drinking unicorn blood, which is a terrible crime.
In the opening of the Declaration of Independence, Thomas Jefferson introduces the distinctly American political thought of "personal liberty," since this is what the colonists felt had been violated by the British.
It starts when Katniss is hunting with Gale, and in the beginning of the book, Katniss wakes up in the morning to find Prim not there with her.