Wildlife researchers say White Nose Syndrome is now a threat to bat populations across North America, having killed bats in 22 states and 5 Canadian provinces… and it’s still spreading. Gary McCracken is chair of the Department of Ecology and Evolutionary Biology at the University of Tennessee and he's a bat biologist. Dr. McCracken is part of a group studying White Nose Syndrome and charting its spread across the country. He says they’ve already learned quite a bit about both the disease and the fungus that causes it…