Federal prosecutors in Michigan charged two Chinese researchers with smuggling a crop-killing fungus into the U.S. last summer. What do we know about the fungus? (AP video: Mike Householder)

What do we know about the fungus American authorities say was smuggled in from China?

Federal prosecutors in Michigan charged two Chinese researchers with smuggling a crop-killing fungus into the U.S. last summer. What do we know about the fungus? (AP video: Mike Householder)