Corrections:A previous version of this article incorrectly stated the source of statistics about increases in population and food demand; those figures were from the United Nations. The article also incorrectly identified the location of an internship program; it will begin at Land O' Lakes headquarters in Arden Hills, Minn.
Corrections:A previous version of the story incorrectly stated the nature of the Minnesota Department of Natural Resource's approval for the PolyMet mining project. The company was given approval to begin the mine's permitting process.
Corrections: A previous version of this article incorrectly stated which agencies scam victims should call. The IRS and the Federal Trade Commission are the correct places to contact if you give personal information in a scam.