Market Place: Bill Radke: The ban on deepwater drilling in the Gulf of Mexico goes back to federal court today in New Orleans. Many, many people in the Gulf Coast depend on oil drilling to make a living. So where does that leaves alternative energy in those states? Over the next two days, Marketplace’s Krissy Clark introduces us to two people who can help us understand whether oil and alternatives can ever mix. Krissy Clark: I first met Nolan Hart through his website, EnergyIndustryPhotos.com, …