The Internet is buzzing over a sequence of photos that appear to show First Lady Michelle Obama having a snit over her husband President Barack Obama having fun with Danish Prime Minister Helle Thorning-Schmidt as they sat at the Nelson Mandela memorial in South Africa today.The sequence seems to have started with Obama, Thorning-Schmidt and British Prime Minister David Cameron posing for a 'selfie', followed by Obama touching Thorning-Schmidt on her shoulder, then a glaring Michelle Obama, ending up in Barack and Michelle switching seats so that she is now sitting next to Thorning-Schmidt.Photos via Twitter.SourceSource