A Strike Or No Strike: That Is The Question

For a country struggling to smoothly quit a war in Iraq, and distortedly debating the management of another in Afghanistan, it would be quite surprising to fall on a cheering audience for a new third war on Iran.
However, a recent poll conducted by The Pew Research Center finds that to about two thirds of the Americans it's "more important" to stop Iran from developing nukes, even if that means "military action," than it is to "avoid military conflict."
It is a reflective public mood of the conflicting trends at the Hill. Top Republican Sens. Lindsey Graham (S.C.) and Saxby Chambliss (Ga.) went on national television on Sunday, Oct. 3, saying that the U.S. military should not only bomb Iran’s nuclear facilities, but should launch an “all-or-nothing” war against the Persian country with the goal of obliterating it.

On a more practical note, the Pentagon is speeding up production plans of a 30,000-pound massive ordnance penetrator (MOP). The gargantuan "bunker buster" bomb is expected to be ready in months.

Highlighting the urgency of the project, Congress has approved a previous Pentagon request to shift funds to it. The bomb, able to hit targets buried 200 feet below ground, is designed "to defeat hardened facilities used by hostile states to protect weapons of mass destruction," press secretary Geoff Morrell said.
The Pentagon announced Friday it awarded McDonnell Douglas Corporation a 51.9-million-dollar contract to enable B-2 aircraft to carry the enormous MOP.

Nevertheless, the Obama administration, chiefly among which Secretary of Defense Robert Gates, have unwaveringly shrunk the possibility of nuking Iran.
Gates said last month that a military strike against Iran would only "buy time" and delay a nuclear weapons program by about one to three years.

It is quite possible that the Administration is undertaking precaution measures had the Israelis decided to unilaterally seek neutralizing the Iranian nuclear program, hence dragging so many players into a “World War” scale confrontation.