Did U.S. miss 2010 chance for Iran nuke deal? Turkey says yes

"... The deal, known as the Tehran declaration, had been put together by the presidents of Brazil and Turkey, whose diplomats devoted enormous energies persuading power brokers in the Iranian government to accept it.But the U.S. and other powers rejected it because they feared Iran had agreed to its terms only to undercut a U.N. Security Council resolution that imposed new sanctions on the government in Tehran.
The rejection of the Tehran declaration takes on new relevancy as the United States and five other major powers sit down with Iran here Saturday in hopes of reviving negotiations over Iran's nuclear program.."

Read more here: http://www.mcclatchydc.com/2012/04/13/145184/did-us-miss-2010-chance-for-iran.html#storylink=cpy