I think it is thoughtless to claim we have not had any more attacks on American soil. Al Qaeda's attacks have risen dramatically across the world due to Bush's policies that include the invasion of Iraq.
This is an excellent, interactive map of Al Qaeda terrorist attacks since 9/11. Unfortunately, it has not been updated since 2006.
Interactive Map: Al Qaeda Attacks Around the World
Human beings are human beings, wherever they are, and I do not value American lives over non-Americans'. Until AQ's slaughter stops across the world, I would not brag about it not happening on our soil.
Elphaba