Did you see these photos?

Before getting negative remember they are human. UK Prime Minister David Cameron, US President Barack Obama and Danish Prime Minister Helle Thorning-Schmid have faced serious backlash from people since these photos of them taking a playful shots of themselves  at Nelson Mandela's memorial service in Johannesburg was released yesterday.

And now the world is   accusing them of undermining the seriousness of the event by smiling and taking photos on their mobile phones. I don't know what these people are talking about, was this inappropriate?