Sauron,it surprises me you have been in the military but were not taught the advantages of a cockroach based alimentation,cockroachs are full of protein, the problem is OUR sewer system and its bacterias, wildlife coackroachs can be a salvation if you are lost without food supplies.
but just roast them well,and sewer roaches can be palatable too....well at least i heard,i aint trying the last one.