Iran ratchets up tensions with higher enrichment, draws warnings

Iran announced on Sunday it will shortly boost its uranium enrichment above a cap set by a landmark 2015 nuclear deal, a major breach likely to draw a tougher reaction from President Donald Trump, who has pressured Tehran to renegotiate the pact.In a sign of heightening tensions, France, Germany and Britain -- all parties to the deal -- expressed concerns over the step taken by Tehran, its latest effort to force the West to lift sanctions ravaging its limping economy.In a live news conference, s