Scourge of the Potomac
THERE ARE MANY SLIMY and unappealing things in Washington, D.C.—politicians, attorneys, lobbyists—but flyfisher Austin Murphy is interested in just one: the northern snakehead, also known as the Potomac Pike or the fearsome-sounding Frankenfish, named for its seemingly unnatural ability to move on land, live for days out of water breathing air, secrete mucus from its…