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sivavaid acookiecrumbles emilybell pilhofer jason_kint justinhendrix jeffjarvis mariaressa campbell_brown tamaleaver e_armijo timberners_lee JoshFrydenberg CaseyNewton sarahinthesen8 It would be an interesting technical challenge. I don't know if YouTube has anything on-crawl that distinguishes news content that Facebook could use even if they want to.
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sivavaid acookiecrumbles emilybell pilhofer jason_kint justinhendrix jeffjarvis mariaressa campbell_brown tamaleaver e_armijo timberners_lee JoshFrydenberg CaseyNewton sarahinthesen8 I'd expect that to be in the json+ld, but it doesn't look like YouTube puts much there (weird considering Google is a major signatory to Schema dot org) so only way is a manual list, or if the video publisher has added it as a tag, in which case it appears in og:video:tag.
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sivavaid acookiecrumbles emilybell pilhofer jason_kint justinhendrix jeffjarvis mariaressa campbell_brown tamaleaver e_armijo timberners_lee JoshFrydenberg CaseyNewton sarahinthesen8 Ah, wait, there is somewhere they could look:
<meta itemprop="genre" content="News & Politics">
, if the publisher has set that up on their YouTube account, but that may end up including a lot of channels that wouldn't traditionally be considered news.