When Does A Tree Go From Decorative To Dangerous?

Most people like trees — right up until a storm like last Friday’s mid-Atlantic “derecho” knocks one into their car. So when is a tree merely nice to look at and when does it become a hazard? Robert Siegel talks to Tchukki Andersen, a staff arborist at the Tree Care Industry Association, about how homeowners can safely care for their trees.

Read and listen to the complete interview at NPR.