We know that the U.S. has been trying to conduct covert industrial espionage, if you will, against Iran's nuclear program for many years," said CNN's Pentagon Correspondent Barbara Starr. "[They have been] going to the suppliers, going other places; trying to make sure that things get messed up, if you will; that parts may not be what they should be; that certain processes may not work right. Anything that they can do to jam the work to delay the program