This is true of all government actions. As an individual, I cannot sentence my neighbor to death because he or she committed a crime, or declare war on the town

This is true of all government actions. As an individual, I cannot sentence my neighbor to death because he or she committed a crime, or declare war on the town next door, or wiretap someone I suspect of a crime. This is one of the major purposes of having a government in society - to delegate tasks to them that the overall group/society does not feel comfortable allowing individuals to take.