Your memory for the moment you heard about the planes crashing into New York's Twin Towers would be most appropriately termed a(n) memory.

Flash bulb memory

Explanation:

The theory of Flashbulb memory was first proposed by Brown & Kulik (1977). They defined flashbulb memory as a highly detailed, exceptionally vivid "snapshot or photographs" of the moment when a surprising and emotionally arousing event happened.

Flash bulb

Explanation:

Flashbulb memories are one type of autobiographical memory. They are known for their elements of personal importance, consequentiality, emotion, and surprise.

Flashbulb memories have six characteristic features: place, ongoing activity, informant, own effect, other effect, and aftermath. Arguably, the principal determinants of a flashbulb memory are a high level of surprise, a high level of consequentiality, and perhaps emotional arousal.The planes crashing into New Yor'k Twin Towers is a flashbulb memory that has the element of surprise.

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.