Questions with the keyword 'security'

• will lasers be used as security in the future? Like could they check your eyes as some sort of identification? Thanks! by shoetree3 to Mike, Pip, Tianfu, Tim, Tom Comments: (No comments so far )
• Are the security lasers in spy movies actually used in real life? How do they work? Thanks! by pegasister and 1 other. to Mike, Pip, Tianfu, Tim, Tom Comments: (No comments so far )