Prior to 2009 active shooting incidents were few and far between.  According to the FBI’s Behavioral Analysis Unit 2, active shooter incidents have risen dramatically in recent years.  In almost all cases, shooters were motivated by deeply perceived personal grievances that were motivated into action after being inspired by publicized active shooting incidents.  This copycat phenomenon should be considered when planning for safety in the workplace.  Different measures apply to different circumstances in just how much planning should be considered.  This overview put together by the Ready Marine Corp will help you navigate what is best for your situation.