Why Dow and DuPont Decided to Merge

Dow and DuPont have announced the biggest merger plan in the history of the chemical industry. As a measure of their role in the economy, the new combine would then split into three new companies focused on agriculture, plastics and so-called "specialty chemicals." Brooke Sutherland, columnist for Gadfly, Bloomberg's new site for fast commentary, considers what the merger will mean for investors and agriculture.