Where did teenage disrespect for authority go?

According to a poll conducted among American HS students (as reported by the BBC), teens overwhelmingly reject the key US freedom guaranteed to American citizens, the freedom of speech, by a large margin. Two-thirds of American HS students feel that burning the American flag, for example, is illegal. Only 50% of American teens felt that newspapers should publish stories that didn't merit the government's approval. And finally, only 83% of teens felt that they should be allowed to express unpopular views, a number that should be hovering around the 98% range.

You can find the article here: US' teens reject key freedoms

Man...and I thought teenagers in America were supposed to reject authority and do everything opposite of what elders want them to do? Has the younger generation after mine become SOFT?