German Chancellor Angela Merkel said on Friday said remain over surveillance even as US President Barack Obama pledged to have 'cyber-dialogue' on the issue to address gaps between the two countries over data monitoring and intelligence gathering. 'We have a few difficulties yet to overcome,' Merkel said in a joint news conference with Obama at the White House. Obama also said the United States does not have a blanket 'no spy' agreement with any country and that it is not accurate to say the United States offered and withdrew a 'no spy' agreement with Germany.
