If you live in NY, you've probably seen the anti-terrorism ads plastered all over the city, declaring: "If you see something say something". I always wondered if I should "say something" about those giant nitrogen tanks I see all over the place. Don't they look a tad bit sketchy to anyone else? I mean, if those things don't set off all sorts of alarm bells in your head, I don't know what will! Do not fret, apparently they are completely safe. They enable our internet and phone services to function, by keeping underground cables cool and dry. If you'd like to find out more, here is a handy-dandy video.
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