nbc news kirk gregory has a closer now at some of the areas hardest hit. >>> massive flooding continuescross six states. in parts of western tennessee, water as far as the eye and helicopter can see. the state's governor has requested $10 million in federal emergency funding. >> we are prepared to respond as quickly as possible. >> the mississippi river has already breached its banks. this is memphis, where rising floodwaters are threatening neighborhoods. on the other side of the mighty mississippi, large parts of eastern arkansas are under water, including dozens of highways and roads. experts are trying to minimize damage. the army corps of engineers blew up this levee near kay row, illinois, sacrificing 130,000 acres of land and 100 homes to save the community. concerns continue to rise downstream. city officials in vicksburg, mississippi warning residents. >> this flood is going to be historic based on the prediction of the national weather service. >> and casinos aren't gambling with mother nature's destructive power. money is being taken away for safekeeping. many casino operator