The Pawlenty administration and others watching the Minnesota economy see biotechnology as one bright light on the horizon. And no single place better captures Minnesota's biotech dreams than a sprawling, abandoned building on the west edge of St. Paul. The city bought the building this month to serve as a non-profit "incubator." Officials hope the empty space will nurture fledgling biotech entrepreneurs into tomorrow's powerhouse corporations. Minnesota Public Radio's Jeff Horwich reports.