re: "No terror attacks have succeeded here since 9/11/2001"
You have to be honest.
You have no more proof for your statement than someone who claims Bush's policies are the reason we've been safe for over four years.
The fact is, there have been no attacks on U.S. soil despite constant threats of them.
Your elephant analogy only makes sense if there had actually been an elephant stampede through the White House four years ago.