Between 1776 and 1789, Americans replaced a government over them with a government under them. They have worried ever since about keeping it under. Distrust of its powers has been more common and more visible than distrust of the imperial authority of England ever was before the Revolution.
Everybody’s worried about stopping terrorism. Well, there’s a really easy way: stop participating in it.
Text messaging is just the most recent focus of people’s anxiety; what people are really worried about is a new generation gaining control of what they see as their language.