A last minute "mayday" helped Baltimore police save lives. Listen!

Baltimore 'hero' police officers stopped traffic passing over Francis Scott Key Bridge within 90 seconds of warning. It was the middle of the night when a dispatcher's 12-second warning crackled over the radio: A massive cargo ship had lost its steering capabilities and was heading toward the Francis Scott Key Bridge

Here is audio of a police communication just seconds before the container ship hit the bridge. Police had precious few seconds to make sure no traffic was going to be crossing that bridge and that was a life-saving effort and cops are being praised as heroes.