The choice of operating first in cyberspace offers advantages, reduced costs, high offensive potential and ability to operate actions of intelligence extended in time to study the vulnerabilities of the adversary. Stuxnet and similar weapons have teach to the world how could be effective a cyber weapon, it is silent and it could be attack critical infrastructures with serious implications. The U.S. is pursuing a policy that is softer looking international consent and aiming to hit Iran economically and politically with penalties and warnings. A possible attack could certainly affect the outcome of the November elections.”]
Source: http://securityaffairs.co/wordpress/3132/security/iran-from-cyber-warfare-to-the-oil-war.html