I've used carbon steel knives for many years, from my first Schrade skinner, an Old Hickory butcher knife or the custom fighter my dad made for me (from a True Temper bush axe blade no less) to my RAT RC-6 (to name just a few). My personal favorite (the one my dad made) has machine indexing on the blade flats and still retains its shine from periodic care with 3 in 1 oil, Breakfree, silicone spray or a silicone cloth (whatever I have handy at the time). My Old Hickory has been brown for years. A few strokes on the Arkansas stone and we cut bait (or anything else for that matter) with ease. My RAT is fairly new, but it will be used hard and will end up with a patina on any of the exposed steel. That is the nature of carbon steel, end of story. So any LEO that doesn't understand this needs to dig a little deeper into the details of their own tools and personal equipment. If you want a good tough knife that will hold an edge, can be fairly easily sharpened and won't break off in whatever you stick it in, what's the problem with a little rust once in a while?