I've just woken up to this news and couldn't believe what I was hearing.
It brings back the same, crushing, dark feelings that came with the 9/11 series of events.
I don't think there are any words that can put the emotions into any form of coherence. We can never really protect against terrorists; they are by nature opportunistic, subversive and dispassionate about human life. Anyone who can justify the deaths of innocent people will never be reasoned with - particularly those who aim to kill the maximum number of innocent victims.
I'm not a Bush/Blair fan, to say the least, and don't believe that bombs/wars solve any more than negotiations round the table. As on-yer-left said, terrorists live and die for their cause.
Thank God the emergency services were so well prepared and co-ordinated - and hopefully saved many lives in the process.
Home seems so far away at the moment. I don't live in London, but times like these make you want to be with your loved ones and family, telling them how much you love them.