Yellow means caution. You're heading out the front door of your house to go to work. There's no visible threat, but you're alert to your surroundings, and prepared if something should happen. It's not a state of paranoia, it's a state of alertness.
Condition red means there's an imminent threat, or the possibility of an imminent threat. An example would be a robbery alarm at your local bank. You can't see if it's an imminent threat or just another false alarm as you're driving to the location, but the possibility is always there, so your level of alertness is at its highest level. Remembering this simple color chart will help in preparing you for a possible ambush-style attack, and break you out of that routine mindset.
Rifle at the Ready
As we saw in Dallas, Baton Rouge, and now in Iowa, some of these assailants who ambushed law enforcement officers used long guns against us. We never want to be in a fair fight, we always want to have the upper hand. If the bad guy brings his fists, bring a police baton, OC, or a TASER. If he brings a knife, bring a gun. If he comes at you with a rifle, you need to have a rifle and superior training and tactics.
Every officer, regardless of rank, title, or position, needs to have a patrol rifle available to them at all times. It doesn't mean they're walking around with it slung over their shoulder 24/7, but it does mean they can get to a rifle should they need it. That means everyone from the chief on down needs to be trained and qualified to use a patrol rifle. Think back on some of these ambush attacks, or even some active shooter calls. Had the officer responded with a patrol rifle in the initial stages of the attack, would the final outcome have been different?
Just having a rifle available 24/7 is not enough. We need to have superior training and tactics. That means learning how to shoot while moving, in low light, one-man, two-man, and team moving and tactics. We're not at war with the public, but we need to be prepared and trained to go up against assailants who have some military training in their background, such as the assailant who killed five officers in Dallas.