>>Of course there was The Battle of the River Plate.<<
Which of course, was only a movie where the Salem played the role of the Graf Spee. That's as close to any real combat that this ship ever got. The only ship of this class to see combat was the USS Newport News (See http://en.wikipedia.org/wiki/USS_Newport_News_%28CA-148%29 ) which was used in for naval gunfire support missions during the Vietnam conflict.
>>The only ship of this class to see combat was the USS Newport News<<
I remember her last deployment, her #2 turret had been deactivated and the middle gun removed and plated over- the result of a turret explosion.