This morning, conservative Star Tribune columnist Katherine Kersten started saying her goodbyes, informing readers of her blog that her “Think Again” blog and print column are being discontinued. (Apparently she isn’t interested in staying on as a reporter.) “I’ve been informed that my services as a columnist are no longer needed at the Star Tribune,” she wrote. “In the near future, Think Again will have to close up shop. I expect I’ll be able to keep the doors open and the lights on for a couple weeks yet. At some point, I’ll have more to say about my plans for the future.”