I awoke this morning to President Obama speaking at the huge memorial for Nelson Mandela in Johannesburg, South Africa. As he tends to do, Obama delivered a masterful oratory, filled with just the right words and emotions. But the one moment that's getting the most attention is the brief handshake he shared with Cuba's Raul Castro. The usual haters (read: Republicans) on Twitter are spewing the usual venom, like this: Whoa! An enthusiastic handshake AND another bow to Raul Castro. http://t.co/2oYw6XmONE @abcnews @CBSNews @NBCNews @nytimes @FoxNews #tcot — Right Wing Jewess (@RightWingJewess) December 10, 2013   Of course, Marco Rubio [...]