More than 240 million gallons of untreated wastewater have leaked into the Potomac River in Maryland due to a 60-year-old sewer line break, sparking a political controversy. NBC News’ Tom Costello provides details.
More than 240 million gallons of untreated wastewater have leaked into the Potomac River in Maryland due to a 60-year-old sewer line break, sparking a political controversy. NBC News’ Tom Costello provides details.