Iran will not back down on its nuclear stance despite the threat of tighter sanctions, Iranian media quoted a government spokesman as saying on Sunday.

Iran has carried out missile tests for what could be a plan for a nuclear strike on the United States, the head of a national security panel has warned.

In testimony before the House Armed Services Committee and in remarks to a private conference on missile defense over the weekend hosted by the Claremont Institute, Dr. William Graham warned that the U.S. intelligence community “doesn’t have a story” to explain the recent Iranian tests.

One group of tests that troubled Graham, the former White House science adviser under President Ronald Reagan, were successful efforts to launch a Scud missile from a platform in the Caspian Sea.

“They’ve got [test] ranges in Iran which are more than long enough to handle Scud launches and even Shahab-3 launches,” Dr. Graham said. “Why would they be launching from the surface of the Caspian Sea? They obviously have not explained that to us.”

Another troubling group of tests involved Shahab-3 launches where the Iranians “detonated the warhead near apogee, not over the target area where the thing would eventually land, but at altitude,” Graham said. “Why would they do that?”

Graham chairs the Commission to Assess the Threat to the United States from Electromagnetic Pulse (EMP) Attack, a blue-ribbon panel established by Congress in 2001.

The commission examined the Iranian tests “and without too much effort connected the dots,” even though the U.S. intelligence community previously had failed to do so, Graham said.

“The only plausible explanation we can find is that the Iranians are figuring out how to launch a missile from a ship and get it up to altitude and then detonate it,” he said. “And that’s exactly what you would do if you had a nuclear weapon on a Scud or a Shahab-3 or other missile, and you wanted to explode it over the United States.”

The commission warned in a report issued in April that the United States was at risk of a sneak nuclear attack by a rogue nation or a terrorist group designed to take out our nation’s critical infrastructure.

“If even a crude nuclear weapon were detonated anywhere between 40 kilometers to 400 kilometers above the earth, in a split-second it would generate an electro-magnetic pulse [EMP] that would cripple military and civilian communications, power, transportation, water, food, and other infrastructure,” the report warned.

While not causing immediate civilian casualties, the near-term impact on U.S. society would dwarf the damage of a direct nuclear strike on a U.S. city.

“The first indication [of such an attack] would be that the power would go out, and some, but not all, the telecommunications would go out. We would not physically feel anything in our bodies,” Graham said.

As electric power, water and gas delivery systems failed, there would be “truly massive traffic jams,” Graham added, since modern automobiles and signaling systems all depend on sophisticated electronics that would be disabled by the EMP wave.

“So you would be walking. You wouldn’t be driving at that point,” Graham said. “And it wouldn’t do any good to call the maintenance or repair people because they wouldn’t be able to get there, even if you could get through to them.”

The food distribution system also would grind to a halt as cold-storage warehouses stockpiling perishables went offline. Even warehouses equipped with backup diesel generators would fail, because “we wouldn’t be able to pump the fuel into the trucks and get the trucks to the warehouses,” Graham said.

The United States “would quickly revert to an early 19th century type of country.” except that we would have 10 times as many people with ten times fewer resources, he said.

“Most of the things we depend upon would be gone, and we would literally be depending on our own assets and those we could reach by walking to them,” Graham said.

what I am saying is real information and real action. we have to stop play with words and have a executive plan to remove Iranian regime. we don’t need to state “Gun Boats”, “Stick & Carrot” or “Frog in Hot Vessle” policies against Iran because they are laughing to us and call us “Paper Tiger” an ” a Dog who can only Barking”. what I want is stoping such a policy and change our behavior with serious actions. I thing before Iranian regime change we need change ourelves because with this adminstration only we can continue existing path. I don’t beleive with such article we can see real change in US policy or any flexibility or reform in Iran. only thing that can lead us to true is what Mc Cain said during his speech’ Bomb Iran” that is set.
please do not accuse me and try to understand what I am saying. we need to real information from inside, superior analysis and executive decision makers that can help us to reality before something happen!!
I believe if US and rest of the world do not remove the Iranian regime by military action until end of this year Mullahs will attack to US and Israel very soon. it can be on 2009 but with the Alqade or Hezbollah’s hands.