Instruct: Classify a given Amazon review as either positive or negative.
Query: very outdated...

the video lacks a great amount of up-to-date espionage. i regret buying this video bec. it seems like it is made in the 1960-1970s... the techniques and devices used for spying and surveillance only clash with this time period. its like the game of a child, bec. their actions (the spies) are so obvious, like holding a walkietalkie or an earplug attached to them. they're not discreet, so i dont really suggest this video. its not so useful except for getting to know the different spying devices. try going for something like the 1990s or 2000s if ur gonna buy a video for espionage.