I live about a dozen miles as the crow flies from W's ranch, and many of us in the area have had a sense of unease about the ranch since 9/11. When the Bushes are in residence security is very obvious, tight and radiates out for miles. But when they aren't here, I've often wondered how far security stretches beyond the ranch's fence lines. Obviously Ft. Hood is nearby and I presume they watch it closely, but who knows? There are a few private airports and airstrips in that part of the county and air traffic is only restricted when the President is here.
As to Iraqis sticking out like a sore thumb, you might be surprised. They probably would in downtown Crawford, but not so much in the Waco/McLennan County area. We have many people of Middle Eastern descent. Many of them own hotels/motels and convenience stores. There is a convenience store on the main highway between western Waco and Crawford that is owned by Middle Eastern people last time I checked, and Baylor University has an ethnically diverse student body.