Quite simply, to observers the amount of recent articles coming out in mainstream media has increased noticeably. This is concurrent with the attitude of the times. Compared to a couple of years ago, less and less americans are believing bush and his fear-ratcheting talk. And in addition this climate is freeing many people to start daring to imagine the 'impossible'.
In such a climate, all the aspects of the attacks that lead all sane citizens to question the authorities' version are beginning to be talked about.
In short, the topic is getting into the public consciousness.
Americans of course will be very interested to know why their government chose to ignore the reams of intelligence telling them that such an attack was upcoming.
They'll be interested to know why the commission was so corrupted in arriving at the 'official' story.
They'll be more than interested to discuss how virtually all the hijackers were from saudi arabia, yet bush chose to punish iraq instead.
And maybe they might be interested to hear how one of their passports flew out of a window on impact with the WTC, serenely floating down to the chaos below, just waiting to be discovered by a government worker.
They might also ask why WTC7 fell down, yet no other building suffered the same fate.
They might want to know why the CIA agents in chicago area were consistently blocked from their work in informing the american government authorities about upcoming attacks.
Why all the video footage/evidence of the plane going into the pentagon has never been released.
Why the bereaved family members say what they do.
Why just about everything failed to do its job required of it in an emergency.
Why the president was not immediately whisked off after the first collision.
Why they long ago gave up looking for OBL.
And so it goes on.
Maybe others can add to my list.