I don't know if it's true or not, but they said it again on the news that there are "reports" that the London Police have not confirmed that there were 2 other devices found unexploded.

If it is true, they definetly would NOT want to give out too much info simply because they can track down the maker 10000 times easier with the bomb unexploded.

I also saw on the news last night that MARTA has stepped up security big time. Good for them.