Many of us swat or shoo away the buzzing bee that invades so many a summer picnic. But, we may be upsetting a creature with little interest in humans, and many argue that the striped insect is as important to agriculture as soil or sunshine. The United Nations reports that bees pollinate more than 70% of the 100 crop species that provide most of the world's food. And for reasons ranging from pesticides to a lack of regional plant diversity... the honeybee may be in danger. Arash Arabasadi, of VOA's Persian News Network, reports from Washington.