Laws based on the concept of sin

One sign that religion permeates American culture is the unfortunate tendency to pass laws that incorporate or represent religious perspectives, thus imposing them on non-religious citizens. I once read in a local paper about a local city government town council meeting in which a business permit was denied to a lawful applicant (a psychic) because a large group of religiously motivated people opposed the permit. The city council in question was not willing to stand up to the large gathering of concerned voters and voted the application down -- a clear violation of separation of church and state, given the makeup of the opposition.

This led me to consider how often this sort of thing happens. An event occurs which draws the wrath or concern of the Christian population. They complain or demonstrate against this event (or it's representative). Local government is too afraid to stand up to the religious pressure and gives them what they want. No one is ever held accountable for allowing religion to invade the public domain in an unacceptable and unconstitutional way.

How many of our laws are based on the concept of sin, rather than on the good of the community as a whole?

• Prostitution (sexually related work in general)
• Drugs (which have been legal in the past)
• Blue laws (some things, such as alcohol, cannot be sold on Sunday)

Can you think of others?