Okay, I’m trying to be evenhanded here.
On Sept. 24, Rolling Stone magazine ran a cover story that emphasized the unsavory aspects of the Koch brothers’ business empire. You can read it here: http://www.rollingstone.com/politics/news/inside-the-koch-brothers-toxic-empire-20140924
The next day, Sept. 25, Koch Industries responded, in part by attacking the messenger, journalist Tim Dickinson. You can read the Koch Industries response here: http://www.kochfacts.com/kf/response-to-rolling-stone-story/
And then, on Sept. 29, Rolling Stone and Dickinson replied here: http://www.rollingstone.com/politics/news/koch-industries-responds-to-rolling-stone-and-we-answer-back-20140929
I love watching 
ping pong. (Click on picture to activate players)
P.S., if you’re curious why Charles and David Koch are so rabidly rightwing, the backstory is something like this: Their father, Fred Koch, made his fortune by building oil refineries for Stalin, and after doing business with Stalin for a while, decided he didn’t like him all that much.