dustin johnson, the ciohampn. ♪ it's twith the new sleep number 360 smart bed.senses your every move and automatically adjusts on both sides to keep you effortlessly comfortable. and snoring... does your bed do that? the new 360 smart bed is part of our biggest sale of the year where all beds are on sale. and right now save 50% on the labor day limited edition bed. >>> a massive rescue operation is underway in parts of texas after catastrophic flooding in the wake of hurricane harvey. thank you so much for joining us. i'm debra alfarone. more than 1,000 people have been rescued. two people died. police expect that death toll to rise. people trapped in their houses being told don't take shelter in your attic. get an axe and break through your roof so rescue workers might see you. kenneth craig is on the ground in houston where entire neighborhoods are under water. >> reporter: residential streets became a pathway for boats rescuing people from flde