GENEVA (Reuters) – Saturday night had turned into Sunday morning and four days of talks over Iran’s nuclear program had already gone so far over schedule that the Geneva Intercontinental Hotel had been given over to another event. A black tie charity ball was finishing up and singers with an after party band at a bar above the lobby were crooning out the words to a Johnny Cash song – “I fell into a burning ring of fire” – while weary diplomats in nearby conference rooms were trying to polish off the last touches of an accord. Negotiators emerged complaining that the hotel lobby smelled like beer. At around 2:00 a.m., U.S. Secretary of State John Kerry and counterparts from Britain, China, France, Germany and Russia were brought to a conference room to approve a final text of the agreement which would provide limited relief of sanctions on Iran […]