"Why the hell did this not make any major news outlets?"
The primary theory here seems to be that coverage has been effectively squelched from on high, Homeland Security or above. Why? That's up in the air ... too much information might jeopardize ongoing investigations, it might cause a panic, it might cause economic problems at a somewhat precarious time for the country. It could be a case of denying "glory" and recognition to terrorist organizations, who seek such infamy. Nobody is completely certain.
It's not the first time terrorist activity has been denied for as long as it could plausibly be denied.
The troubling thing is that the squelching is so complete. Outside from the local news and a bunch of blogs, nothing. Even conservative media. What's been happening on Fox? On Rush? Hannity? One would think the possibility of a suicide bombing mass-murder attempt would perk more interest than the latest from Aruba