Germany's Angela Merkel has said a US official's apparent insult of the EU's efforts to mediate in the Ukraine crisis is "totally unacceptable". Victoria Nuland has apologised after she referred disparagingly to the EU's role during a conversation said to be with the US ambassador to Ukraine. Germany's Angela Merkel has said a US official's apparent insult of the EU's efforts to mediate in the Ukraine crisis is "totally unacceptable". Victoria Nuland has apologised after she referred disparagingly to the EU's role during a conversation said to be with the US ambassador to Ukraine. A recording of the exchange was...