If you read the entire article (rather than just the excerpt here) they do show some of the source material that is repeated almost verbatim in her book.
To me though if you're only talking about two or three little paragraphs out of an entire book then that isn't plagerism, it's just oversight and would be corrected in subsequent editions. I mean this article states that she had 19 pages of endnotes. So what if she inadvertantly missed a couple? I imagine it happens quite frequently in books of this nature and if every such book were put under this sort of scrutiny you'd find similar mistakes.
In both the citedassages, Ann was reporting facts, not opinions or analysis. THere are only os many ways to report a fact, and most of them have limited literary value. The "fact" that Ann reported "facts" with language similar to previous reports of the same "facts" suggests only that Ann and the newspaper writers both wrote clear sentences.