When a member of kennedy's cabinet expressed concern over the plan to invade cuba, the attorney general (and kennedy's brother) pulled the dissenter aside and told him to support kennedy's decision. in this case, the attorney general was acting as a

Group think

Explanation:

Group think occurs when well-educated high posted well-intention-ed people make an irrational and wrong decision which is not good at all. The members of the group also support that decision making it rational. In a group think the other member have to refrain from expressing their doubts, decisions, judgment, and disagreement with the decision. It is the ignorance of ethical law and its moral consequences.  

To minimize this error of thinking provide full time to discuss the topic and allow group members to share their viewpoints.

answer; i believe that the correct answer is ; the eastern and western churches spoke different languages;

trade regulation is a field of law, often bracketed with antitrust (as in the phrase “antitrust and trade regulation law”), including government regulation of unfair methods of competition and unfair or deceptive business acts or practices. antitrust law is often considered a subset of trade regulation law. franchise and distribution law, consumer protection law, and advertising law are sometimes considered parts of trade regulation law.

in general the theory of economics says that the more open to trade a country is the better   the result for the same country and the whole economies.

in real life countries impose taxes, quotas, etc which is not so good for the economies.

this kind of commercial war between the usa and china is slowing down the growth of the whole world so we can say that it is a draw back of trade regulations. and the free trade agreements are benefits of trade regulations.