Hurricane Katrina exposed major gaps in federal disaster response and prompted reforms. Now, FEMA is at another crossroads under the Trump administration.

As we look back over the last two decades since Katrina, here are some of the big numbers that stood out to us: - Millions of gallons of oil spilled; Production and refinery capacity remain below levels seen before Katrina - Thousands of jobs were lost due to destroyed workplaces and major population changes - Nearby cities from Houston to Tallahassee saw bursts in population due to permanent evacuation (MORE: Further beef up your forecast with our detailed,