grothe -- growth. there is lot of instruments that are getting smaller and more powerful at the same time. >> even as the technology becomes more advanced it's becoming more and more accessible. this model sells for $300. >> people have been using crazy algorithms to get it to my in al --fly in all sort of places. once you get the basics you can move on to some of the stuff we have seen today. >> drones are not the dough domn of the military or the state. they become more common in airspace there is concern about policy and law. that is the debate taking place along with interesting democrat demonstrations at university's law center. drones mounted by cameras used by law enforcement or journalists raise the issue of policy. there is a issue of liability as the law catches up with technology. >> what are drones more than anything smart phones. >> a third party can write an ap p for it. and it's the software where bones are on the line instead of bits. >>> machines that are programmed to react and make d

. >> overtime, population groth has come, and we are starting to stretch water resources. >> experts keep an eye on the river and say it is not all atlanta's fault. >> there is certainly variables that affect things other than freshwater. >> one lawsuit after another, there has been no solution that quenches everyone's thirst. >> not often that they come to a consensus around something that people have given take in. -- give and take in. you would think that the cost of litigation is annoying. >> it is regulated by the army corps of engineers. the core would force it landed to cut back on water consumption and divvy up the water among the three states. some have a stake in the river, holding out hope that the dispute can be settled outside of the court. >> we hope that the three states can get to the table and bring resolution. >> to bring down the latest of the water wars, we have director of the colombian water center. thank you for joining me. florida is suing the state of georgia because it is overusing water resources. our other u.s. states facing similar things -- threat? >> th