Iowa’s forces are at the ready, as the F-B-I warns of a possible terrorist attack in the United States or against Americans in other countries as soon as today. Iowa National Guard spokesman Colonel Robert King says there’s been no decrease in readiness in five months.Photographs of 13 men believed to be involved in the latest plot are now online at “www.fbi.gov”. The Bureau says it has received credible, but not specific information, about possible targets. Colonel King says the National Guard is maintaining its vigilance at many airports and various military posts across Iowa.In addition to the 55 Guard members who are providing security at eight Iowa airports and the various armories and Guard headquarters statewide, King says many other Iowans have been enlisted in the war on terrorism. He says four Iowa units are on federal active duty.The F-B-I warning was issued last night after interviews with detainees in Afghanistan and Cuba.