Well, we all know how Germany met that challenge.
She said 'since' i.e. she was comparing it to the challenge of post-war reconstruction and confronting the past. Is she right? I'm not any good at predictions, but at least she gave a measured appeal, not a series of lies, exaggerations, and unreliable promises.
Anyone who is interested in the context, and Merkel's manner of reassuring the public while speaking openly and honestly, can watch here:https://www.youtube.com/watch?v=F9ei40nxKDc&feature=youtu.beCompare to Trump's answer to a reporter's question at the press conference today:Peter Alexander: 'What do you say to Americans who are scared?'Trump: 'I say you’re a terrible reporter.'