How did gambling develop into a major industry in Minnesota?

Minnesotans wanting to gamble have many options these days. They can visit a Native American casino, buy scratch-off games at a gas station, yank open pull-tabs at a bar or even play bingo at a church fish fry. But this is a fairly recent phenomenon. Reporter Alex Chhith joins host Eric Roper to discuss the history of gambling in Minnesota. LINKS: How did gambling develop into a major industry in Minnesota?