Four quick thoughts:
1. Thank god NYC didn't win the Olympics bid.
2. Thank god all the terrorists on earth are busy fighting us in Iraq, so everyone else is safe now. 3. Thank god the UK didn't capitulate to terrorists like Spain did, so they're safe from attacks.
And most importantly...
4. Thank god Steve just checked in with me, safe and sound.
Update: Al Qaida claiming responsibility, protesting the G8 and Iraq/Afghanistan. Might not have been Olympics-related (but thank god we didn't win anyway). London's closer to my heart than other cities (having been born there and having visited almost a dozen times in the past decade), so this is a particularly upsetting attack.