Secondly, in the US, we have the right to keep and bear arms, which means every one the routine patrol officer encounters should be assumed to be legally armed as well. It would put officers at a severe disadvantage to be unarmed when regularly dealing with armed suspects. In many states 5-10% of the population has a concealed carry permit, and in the majority (40+) of states open carry of a rifle is legal without any permit. Whether you agree with this or not, it's a fact of life in most of the US that a large percent of the population is legally armed, so there seems no reason to arbitrarily limit police from also being armed as any individual citizen could be.