Passage Summary: A farm wanted to test its cows to satisfy an export requirement, but the government stopped them, claiming the tests weren't scientifically needed and might confuse people.

Reasoning: The government blocked a private farm's voluntary safety testing because it deemed the risk scientifically insignificant and feared the public would misinterpret the testing as necessary.

Analysis: The task is to find a principle that the government's action violates. The government is essentially paternalistic here, preventing a private entity from performing a harmless, voluntary action based on the government's own assessment of 'scientific justification.' Look for a principle that emphasizes the rights of businesses to exceed minimum safety standards or suggests that government interference should be limited to preventing harm rather than managing public perception.