(Reuters) - 1/ G7: AGREEING TO DISAGREEHas there been a time in recent decades when the Western world was so divided? Trade, climate change, exchange rates, government spending, Brexit, dealings with China, Iran and Russia - there doesn't seem to be an issue that all members of the wealthy G7 group of nations agree on. So far apart are their views that the Aug. 24-26 Biarritz G7 summit is expected to be the first since 1975 to end without the usual joint communique.Summit host France's..