still in stress, to get the emergency aid in there, to get people's lives back together. but very soon after that, there has to be a serious conversation about how houston rebuilds. so this doesn't happen again. now, there are two solutions basically. the one is the gray solution that is concrete. that is -- that culverts, drains, trying to get the water out of there when it lands and the other is the green solution which is to say you can't flush all of the water away. more storms like harvey are coming. you have to have a solution to involve catching the water, when it comes down, and allowing it to be gradually absorbed and gradually flushed out to the gulf of mexico. this is the green solution. that is the -- the detention ponds, flood control reservoirs and so on. it is expensive because it involves setting aside precious land and that it can't be developed and can't collect property taxes on.