U.S. and Iran resume nuclear talks in Rome amid publicized demands. Khamenei criticizes U.S. stance on uranium enrichment, complicating potential deal.

Depending on who you ask, a nuclear agreement between Iran and the United states is either a non-starter or almost a done deal.

Iran’s top diplomat has warned that his country would take “special measures” to defend its nuclear facilities if Israel continues to threaten them, raising the stakes further ahead of a new round of talks with the United States.