 Years later, another investigation of Tennessee public corruption was code-named Operation Tennessee Waltz, after another state song.Operation Rocky Top was launched in 1986 as an FBI and Tennessee Bureau of Investigation undercover investigation into illegal activities in charity bingo, including the illegal sale of bingo licenses.A first-year member of the Tennessee House of Representatives, Randy McNally of Oak Ridge, became a secret participant in the investigation in 1986 after he reported to authorities that a bingo lobbyist had offered him bribes and had boasted about bribing other lawmakers.