Brand-New "Torchwood: Miracle Day" Teaser Trailer!

A brand-new teaser trailer for Starz/BBC America's "Torchwood: Miracle Day" has been released. Again, like the previous teaser trailer, we don't see much, but we do get some info on what the series is about.
Here's the link to the trailer: http://www.youtube.com/watch?feature=player_embedded&v=AMUjrlYwE70