La libertad política es el derecho, o la capacidad y habilidad, de la libre determinación, como expresión de la voluntad del individuo. Está estrictamente definida por el liberalismo clásico como la capacidad de actuar sin restricciones del gobierno o; más ampliamente definida como la capacidad de tener acceso a determinados recursos por parte del gobierno sin limitación social por el social liberalismo y la mayoría de las variantes del socialismo.
A Trade barrier are laws that limits free trades between countries or nations, An Embargo are type of laws that specifically cuts off trades, it may be import or export into specific countries. Either of these answers fit your question.
I believe the answer is: <span>be difficult to assure that the use of information gathered would do no harm
Anthropology studies the cultures and habbits that exist in a certain society and make a conclusion based on their observation.
There are a lot of cases when the conclusion of their observation is wrong and could ignite conflicts between different social groups. To prevent such things from happening, the rule above was created.</span>