Is the US preparing to bomb Iran?

Is the U.S. stepping up preparations for a possible attack on Iran's nuclear facilities? The Pentagon is always making plans, but based on a little-noticed funding request recently sent to Congress, the answer to that question appears to be yes. First, some background: Back in October 2007, ABC News reported that the Pentagon had asked Congress for $88 million in the emergency Iraq/Afghanistan war funding request to develop a gargantuan bunker-busting bomb called the Massive Ordnance Penetrator (MOP). It's a 30,000-pound bomb designed to hit targets buried 200 feet below ground. Back then, the Pentagon cited an "urgent operational need" for the new weapon. Now the Pentagon is shifting spending from other programs to fast forward the development and procurement of the Massive Ordnance Penetrator. The Pentagon comptroller sent a request to shift the funds to the House and Senate Appropriations and Armed Services Committees over the summer.