Thanks Mac.

This totally grills my gits.

"Japan" implies some sort of action on a national level, by the (purported) representatives of the Japanese people: aka the Government.

"Official Investigation" implies the same.

"Japan's investigation" continues and extends the bullshite hype.

"Japanese scientists..." this is what hackjob clickbait creators do. Literally, 3 Japanese scientists would qualify to be able to make, without lying, the statement "Japanese scientists are demanding...", but this turn of phrase implies a majority or significant portion of, if not all, Japanese scientists.

An accurate informative article would use "several Japanese scientists" or "<actual number> Japanese scientists", or even at least "some Japanese scientists..."

NOT choosing such a turn of phrase evidence of either gross (huge) incompetence in writing, or deliberate effort to manipulate and mislead via word/phrase choice.

Learn to read the signs, anons. Language is like an AR15. It is often dangerous when badly handled, and can either kill or protect life.