Kansas City firefighters now take two simple safety steps that might have saved the lives of two colleagues in a 2015 building collapse. The steps were among the recommendations in a federal report released Thursday. Emergency tones are sounded, as they were two years ago, when firefighters are ordered out of a collapse zone. But now heads are counted to make sure everyone got the message — which was not done before.The federal report cites a series of operational failures that contributed to the firefighters’ deaths. The report said the two men should not have been in an alley next to the three-story building after all personnel were directed to pull back because of fears the walls would collapse. Six minutes after that order was given, they died in an avalanche of bricks.