Was the late Jack Valenti -- famous Houstonian, former Lyndon Johnson aide, former head of Hollywood's MPAA, namesake of the Valenti School of Communications at UH -- as gay as a Sondheim song?We don't care one way or the other, but it appears the FBI did.The Washington Post reports this morning that through a Freedom of Information Act request, they got their hands on files showing J. Edgar Hoover (Irony Alert? Self-loathing gay alert?) investigated rumors that Valenti hosted gay parties in Hou