The United States and Europe appear divided over the health of the transatlantic relationship following a key security conference in Germany over the weekend, attended by hundreds of political and military leaders. Eruopeans accused Washington of ‘rejecting the idea of an international community’ – but the U.S. said the alliance is in good shape. As Henry Ridgwell reports from the Munich conference, there is an emerging disagreement between Western allies over what exactly represents the biggest threat to Western democracy