Video: US Secretary of Agriculture Tom Vilsack talks drought

Widespread drought in the USA was one of the biggest agricultural news stories of 2012. Although the weather has improved recently, the country is still dealing with the wider consequences of drought. For example, grain barges in the Mississippi are only being half loaded due to low water levels in the river. In this video, first broadcast on the Fox News Channel, Secretary of Agriculture Tom Vilsack talks about the challenges the country faces following the drought.