The mountain of evidence for this subject is avilable to everyone. There are hundreds, if not thousands, of official document on UFOs, even prior to FOIA requests allowed additional documents to become public domain- from the government, stamped, authenticated, referencing UFOs- highly didacted. Bryce and Coulthart are better than average journalists- they should know about such things. But fair enough, I would argue if everyone in UFOlogy were as half as informed to the degree Bryce and Coulthart seem to be, there wold be such an upcry from the populace against Congress to reveal what most of UFOlogist already know- it's aliens- that you and I wouldn't be deliberating what people know, might know, or should know.

Of course, if you read Bryce and Coulthart books, you would at least know what they've written about and how they acquired said knowledge. They openly discuss what they know and how they know on their podcast 'Need to Know.' If nothing else, it might be reasonable to listen to them, and if you have a ranking of sources in terms of material and credibility- I am always open to knowing more sources and how they rank.