Deep South Portfolio: Historic Louisiana Flooding: Historic Louisiana Flooding

People arrive to be evacuated by members of the Louisiana Army National Guard near Walker, La. USA, in heavy rain, Sunday, Aug. 14, 2016. After Hurricane Katrina, Congress passed the Pets Evacuation and Transportation Standards Act compelling first responders to save pets just as they save people. Louisiana Gov. John Bel Edwards said the Louisiana National Guard rescued more than 1,000 people and hundreds of pets. (AP Photo/Max Becherer)
Historic Louisiana Flooding

People arrive to be evacuated by members of the Louisiana Army National Guard near Walker, La. USA, in heavy rain, Sunday, Aug. 14, 2016. After Hurricane Katrina, Congress passed the Pets Evacuation and Transportation Standards Act compelling first responders to save pets just as they save people. Louisiana Gov. John Bel Edwards said the Louisiana National Guard rescued more than 1,000 people and hundreds of pets. (AP Photo/Max Becherer)