Why aren't Americans more concerned they are being spied on?

Because they are stupid f-tards?

AlterNet: The NSA's Political Fiction:

"Here's what disturbs me: in light of recent revelations that the National Security Agency has been illegally collecting vast databases of information about every single phone call made in the United States since late 2001, only 53 percent of US citizens polled by Newsweek think the government has gone too far in its efforts to stop terrorism.

That's a majority, but not a very large one. And in the same poll, 41 percent said they thought spying on phone calls made to and from everyone in the country was necessary.

This arouses the same sinking feeling I got many years ago when I was a young graduate student at UC Berkeley, grading my very first set of papers. From that sample, and many others in subsequent courses, I learned that 70 percent of college students in an upper-division English course at a top university cannot construct a coherent argument using evidence taken from books they've read."