The photographer probably has a dozen shots of that scene and any one of them could have shown Bristol’s arm not over her face, but that would destroy the “scandal.”
As for hairdressers, there is the Bill Clinton incident, John Edwards’s pricy cuts, and didn’t Hillary also have a hairdresser with her? And what about Pelosi’s facelifts? I am not sure if Michelle Obama’s hairdresser was among the huge numbers of people traveling with her.