Katie Couric’s speech to Class Day at Princeton was posted Monday on The Huffington Post. In her flailing attempts at humor, she mocked Rush Limbaugh, Donald Rumsfeld, Miss California, and Sarah Palin. And after all that, she counseled the students "don’t be a hater...you must really guard against the cynicism and nastiness that are so pervasive today, especially on the Internet." That’s certainly true when you count anchor snarkiness on The Huffington Post. Here are some of Katie’s lowlights: On Rush Limbaugh: "There may be some opportunities in the Republican Party. They're still looking for an effective spokesman, and the...