BERLIN - Firefighters battled on Oct 24 to put out flames that tore through Adolf Hitler’s “Eagle’s Nest” mountain retreat, as police detained a suspect who investigators said may have psychiatric problems.The alarm was raised late on Oct 23 at the former guest house for top Nazi officials, a picturesque spot 1,834m up in the Bavarian Alps.As snow fell on the Alpine peak, the Eagle’s Nest was still engulfed in flames at dawn on Oct 24.By the afternoon, fire chief Michael Brandl told journalists the last elements of the inferno were being put out.No-one has entered the building because of...