Biden basically told Israel today that if they want to use force to eliminate Iran's nuclear threat, to go ahead.
http://www.foxnews.com/politics/2009/07/05/biden-wont-stand-way-israel-iran-nukes/
For reasons previously explained, I don't think Israel can really do it.
http://www.network54.com/Forum/594658/thread/1240060481/Isreal+to+Strike+Iran-"A man never drinks anything that a plant lives in" --DBone (A Real Man).
http://vimeo.com/4938173