"Additionally, there are a fair amount of Christians who consider the attacks on September 11 to be punishment for the decline in Christian religiosity in the United States."
If what you wrote is true they are NOT Christians but members of the devils clan and total idiots.
The Bible has plenty of accounts of Israel going astray, and God punishing them: with their armies losing and their soldiers dying; people dying of plague because King David had a census; with their country being crushed and a lot of their people being put into exile. So for Christians to propose that soldiers dying in Asia is because the United States has gone astray isn't all that insane of a prospect.