The scale of Pakistan's floods from the air

As Pakistan's flooding crisis continues unabated, the southern part of the nation's most populous and economically important province is bearing the brunt of the huge volume of water that has passed down the Indus River in recent days.The Punjab administration is scaling up its response, but says the needs of the flood victims are way beyond its means. BBC World Affairs correspondent Mike Wooldridge joined a Punjab-government aid mission to the beleaguered town of Rajanpur.