Sen. Bernie Sanders (I-Vermont) is urging the Federal Communication Commission to block the imminent corporate merger between Comcast and NBC Universal. The New York Times reports that Sanders has written a letter to each of the five F.C.C. commissioners, saying, “The sale of NBCU to Comcast would create an enormously powerful, vertically integrated media conglomerate, causing irreparable damage to the American media landscape and ultimately to society as a whole.” Sanders believes the merger, which does not have to be approved by Congress, will lead to higher prices for consumers and a decrease in competition and on-air diversity.