Going by the live feed from JSC, it looks like their having a briefing there now. Hopefully there will be more info then.
First I'd like to offer my condolences to the families of the astronauts. Their courage in the face of this loss should be inspiration to all of us in this time of turmoil and uncertainty in the world

The bravery and enthusiam of the astronauts should remind of all that despite what we see as shallowness and pettyness in the people of todays society, there are still men and women in the world that see the potential for human achievement.

Some time today, walk outside and look up to the sky, mourn the people we lost today and take some solace in the fact that our human spirit is unwavering in it's quest to further our knowledge and understanding of the universe around us.

Remember our hereos for they're watching from above and they expect us to be back into the realms of space and imagination.