The US media has been claiming that Boris "broke Royal protocol" for disclosing the late Queen's cancer. This information has been available for nearly two years, even with Boris including in his book, it's still old news.
Boris also discusses his talk with Harry shortly before Megxit and how he attempted to talk Harry out his decision to step down from Royal duties and leave the UK. The US media doesn't seem to be in tatters over that disclosure.
Boris included both in his book because both happened on his watch. The Palace has not issued any statements since both stories have come out.
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