PORTLAND - The radio station KNRK at 94.7 FM is issuing an apology to its listeners after talk show hosts Marconi, Tiny and sidekick Nickie J. laughed at and ridiculed the beheading of American Nick Berg. The three were fired Thursday afternoon, after airing the audio recording of Berg's murder repeatedly on Wednesday and laughing at the incident. "Disgusting… I'm speechless," said one woman. KNRK and Entercom, the company that owns the station, apparently agreed, playing an apology over the airwaves for their listeners: The actions of the KNRK News Morning Show were insensitive, inappropriate and repulsive. On behalf of...