evacuation of everyone in and around the chemical -- it's a chemical facility that produces peroxide. so that could lead to a chain reaction and could be dangerous. they're not sure if there's imminent danger now, but because they cannot cool that plant right now, they're getting everyone out of there. >> we're watching rescue after rescue unfold. brian, i understand you went out on some air rescues earlier today. what did you see? >> reporter: that's right, john. this was the air marine operations of customs and border protection. very dedicated men and women flying these missions. we were with them on several missions today. these people pulled people out of the most flood ravaged neighborhoods in very dramatic fashion. in our black hawk, we hover next to another helicopter as a hoist is lowered. six people and a dog are lifted