The term "credibility gap" first came into wide usage in the 1960's (1963) and 1970's. It was frequently used to describe public skepticism in the then Lyndon B. Johnson administration's statements on the Vietnam War. Today however it used to describe any "gap" between the reality of a situation and what the government agencies and politicians say about it.
Credibility gap
Red Scare.
most likely your a-hole
The term "pinko" in relation to a communist had to do with the national color of Russia. Its flag is red, so the country was called the Reds. Pink is more "feminine" version of red, so it was a derisive term for red.
Pom is a contraction of pomegranate a derogatory term used by the French to insult the rosy cheeked English
The term person in common usage means an individual human being. (prosopon in Greek)
Credibility
The term 'usage' can have many different meanings depending on how you are implying it. A standard definition of the term 'usage' is the process of using something.
The term the Holocaust only came into widespread use in the late 1970s after the showing of the TV miniseries with that title.
That's the term in usage US.
When pants were raised above the knees, they were known as "short pants". As usage increased people started referring to them as shorts.
The term "critical information" is in standard usage with DOD and other Service components.
widespread or over-ridden... scattered
the degree to which a particular source may be trusted to be true or vaild
No, the correct term is "bare minimum," which means the least possible amount or degree required.
Fibromyalgia
That term does not appear to be in general usage.