Which, really, means it isn't an actual endoscope. Sorry, I don't usually pull quotes from the books, and if someone mentions something, my brain tends to refer to the actual item IRL, if there is one. Yes, going by that definition, a 1+m endoscope would be useful. On the other hand, every security guard out of basic knows that a fellow with an endoscope is up to no good. A dentist's mirror, on the other hand ...
YMMV.