Rampant deforestation in Pakistan a factor in current flood devastation

Suicide bomb attacks in Lahore, Pakistan today have left dozens dead and nearly 200 people injured.  The blasts targeted a mourning procession of Shiites.  The violence comes as the country deals with what’s been called the worst natural disaster in the country's history. Floods have affected an estimated 20 million people, leaving thousands homeless and more at risk of disease. But some environmental groups say rapid deforestation and poor land management has contributed to the disaster.

We're joined by James Dalton, water management adviser at the International Union for the Conservation of Nature.