In this April 23, 2016 file picture a man walking on stilts and dressed like the Statue of Liberty attends a protest against the planned Transatlantic Trade and Investment Partnership, TTIP, ahead of the visit of United States President Barack Obama in Hannover, Germany. Germany's economy minister Sigmar Gabriel said Sunday Aug. 28, 2016 that free trade talks between the European Union and the United States have failed, citing lack of progress on any of the major chapters of the long-running negotiations.