Israel to Attack Iran?

On Sept. 2nd Pat Robertson on his show the 700 Club made the statement that Israel was waiting for the U.S. elections to get over and then that they (Israel) would attack Iran. I wonder if there is any truth to this? Why would he make such a statement and where does his information come from? This would be total devistation to the worlds economy. www.mythoughtsweb.com
Any comments?