Technology and "The Hunger Games"

Discovery News takes a look at technology in The Hunger Games movie, and ponders the implications of the technologies that were chosen to be part of the story's environment:

Some question why a post-apocalyptic North America filled with futuristic technologies would still rely upon coal for its electricity needs; others wonder about the story's complete absence of the Internet. One character in "The Hunger Games" books complains about "forgotten" military technologies such as high-flying planes, military satellites and robotic drones, even as he rides inside a hovercraft.
Such "gaps" in technology don't necessarily represent plot holes, according to historians of science and technology. Real societies have adopted or rejected technologies based on whether they suited their particular economic, political or cultural circumstances.