for the next few weeks to respond to any problems. >> quijano: all right, julianna goldman reporting in our washington newsroom. jewel an athank you. new video surfaced today of a scaffolding collapse in houston. it shows the moment it happened yesterday afternoon. incredible. six workers were hurt but all are expected to survive. it's still not clear what caused the collapse. up next, endangered salmon in hot water. what's being done to save them.