VOA慢速英语:Robot Security Could Help Cut Crime

stadium - n. a very large usually roofless building that has a large open area surrounded by many rows of seats and that is used for sports events, concerts, etc.

apparatus - n. the organization or system used for doing or operating something

scale - n. the size or level of something especially in comparison to something else

strategic - adj. useful or important in achieving a plan or strategy

in tandem - n. two people, groups or things working or happening together or at the same time

surveillance - n. the act of carefully watching someone or something especially in order to prevent or detect a crime

Does the idea of robotic guards make you feel uneasy? Do you think it is a good way to reduce crime? Let us know. Post your thoughts in the comments section?