The U.S. National Weather Service says understaffing did not impact emergency flood response in parts of Texas. Tom Fahy, the National Weather Service Employees Organization legislative director, said the critical response to the deadly floods were 'done by the book' despite offices across the country being 'direly understaffed.' »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS Connect with CBC News Online: For breaking news, video, audio and in-depth coverage: http://bit.