But some will inevitably suspect an ulterior motive, at least in the timing of the attack.

ECONOMIST: Showdown in Jericho | The

Friday's raids occurred just a week before new U.S. Secretary of State Colin Powell tours the Persian Gulf region, and Arab diplomats say he'll have a lot of explaining to do about the timing of this attack.

CNN: Egyptians on trade mission to Iraq as sanctions weaken

However, if the administration does have knowledge of the timing of an Israeli attack, a preemptive release from the SPR could tip its hand.

FORBES: As Gasoline Price Jumps, Will Isaac Coax Obama To Tap Strategic Reserves?

Not everyone agrees with the January timing of such an attack.

FORBES: If Obama Gets Second Term, Israel's January Attack on Iran Looms Large

Federal agents have "no specific information regarding the timing, location or target of any planned attack, " David Kris, assistant attorney general for national security, said in a written statement.

CNN: Bail set for terrorism suspect in Colorado

However, federal agents have "no specific information regarding the timing, location or target of any planned attack, " David Kris, the assistant attorney general for national security, said in a statement announcing the arrests Saturday night.

CNN: Terror suspect: 'Our phone call is being monitored'

"While DHS and FBI have no information regarding the timing, location or target of any planned attack, we believe it is prudent to remind transit authorities to remain vigilant, " the Department of Homeland Security said Friday in a written statement.

CNN: Man questioned in alleged terror plot declines more FBI talks

"While DHS and FBI have no information regarding the timing, location or target of any planned attack, we believe it is prudent to raise the security awareness of our local law enforcement partners regarding the targets and tactics of previous terrorist activity, " the department said.

CNN: Stadiums, hotels attract 'terrorist interest,' feds say

Tommy Franks, Central Command commander, was given essentially a 48-hour window to launch this attack at his discretion, based on the conditions he saw at the ground, when he felt the timing would be absolutely right.

CNN: Jamie McIntyre on the A-Day strikes