Saad-eddine Rafic Al-Hariri, a Lebanese politician and billionaire, has been the Prime Minister of Lebanon from 2009 until 2011. His government collapsed after Hariri posed for pictures with President Barack Obama.Saad entered politics after his father Rafic Hariri, the former Lebanese Prime Minister, was assassinated in 2005.The Saudi-born Hariri runs the family business Saudi Oger, a Mideast telecom, construction and real estate company