Or more more accurately, their stated intent is to scan for anything any government deems illegal in any country where they operate.

Also who is reviewing this known child pornography list? Hopefully nobody because it is Child pornography but also hopefully somebody because what if somebody slips something in there… Say a offensive political cartoon or a ethnic group symbol or a picture of Tiananmen Square. This list of “offensive images” needs to be auditable.

Also it is crossing a line in the sand because it is on your personal device not in their servers. All you can hope for is that they don’t alter the deal further.