Which of the following is not protected when directed at law enforcement officers?

Threats directed at law enforcement officers are not protected under the First Amendment. The reason for this is that the law does not protect speech that incites violence, poses a real threat to individuals, or disrupts public safety. When someone makes a threat against a law enforcement officer, it is taken seriously as it can lead to immediate harm or escalation of violence. This falls into a category where the government can limit speech in the interests of maintaining order and safety.

On the other hand, verbal criticism, protests, and political statements are generally protected forms of speech under the First Amendment, even when they are directed at law enforcement officers. These forms of expression play a crucial role in public discourse and the democratic process, allowing individuals to express dissatisfaction, advocate for change, and engage in dialogue about law enforcement practices and policies. Although these expressions can sometimes be contentious or provoke strong reactions, they are considered essential to free speech protections in a democratic society.