A government is justified in interfering with a person's action if the action would increase the likelihood of physical harm to others and the action desire to help others.
What this question is testing
Principle
The government gets to step in when someone's action (1) could physically hurt other people and (2) is not done out of a desire to help others. Both boxes need to be checked.
Evaluate
Watch for traps: actions that only hurt the person doing them (not others), actions motivated by helping (which gets a pass under this principle), and conclusions that go the wrong way. We need: hurts others + selfish motivation = government can interfere.
Goal
Find the answer where both criteria are clearly met and the conclusion says the government is justified in stepping in.
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