Rush Limbaugh and Sean Hannity will likely remain giants in the talk-radio industry and simply move to other stations in large markets not affiliated with Cumulus Media, predicted the publisher of an online magazine about the talk-radio marketplace. "All of the hoopla about Rush and Sean's radio careers coming to an end are really coming from political opponents, not from the radio industry," says Talkers.com website editor and publisher Michael Harrison, responding to media accounts in Politico and elsewhere that the radio megastars will be dropped by Cumulus stations at the end of the year. --snip-- Harrison said Cumulus will...