“The reality is that it is a painful agreement to make, but also necessary and wise,” said R. Nicholas Burns, who drafted the first sanctions against Iran, passed in the United Nations Security Council in 2006 and 2007, when he was undersecretary of state for policy. “And we might think of it as just the end of the beginning of a long struggle to contain Iran. There will be other dramas ahead.”
http://www.nytimes.com/2015/07/15/world/middleeast/iran-nuclear-deal-us.html
http://www.nytimes.com/2015/07/15/world/middleeast/iran-nuclear-deal-us.html