WASHINGTON (AP) - A new White House executive order would direct U.S. spy agencies to share the latest intelligence about cyberthreats with companies operating electric grids, water plants, railroads and other vital industries to help protect them from electronic attacks, according to a copy obtained by The Associated Press.

The seven-page draft order, which is being finalized, takes shape as the Obama administration expresses growing concern that Iran could be the first country to use cyberterrorism against the United States. The military is ready to retaliate if the U.S. is hit by cyberweapons, Defense Secretary Leon Panetta said. But the U.S. also is poorly prepared to prevent such an attack, which could damage or knock out critical services that are part of everyday life.