Death toll rises in Texas floods

(NBC News) At least 12 people have been confirmed dead and 13 remain missing in the wake of widespread flooding across Texas and Oklahoma.The streets of Houston look like canals after flash floods swept across the city overnight.More than ten inches of rain fell in some parts of the city in a matter of hours.Cars, trucks and even tractor-trailers were no match for the rising flood waters that overwhelmed dozens of city streets.Rescue crews carried out more than 500 high-water rescues throughout