Its trivial. I'm sure they checked into her sources before the book came out. As for the column, mere similarity of thought is NOT plagiarism. There has to be identical unattributed word-for-word copying of another's work. I'm sure after the rash of liberals we've seen busted for being less than truthful about how they wrote as well as what they wrote, it was a matter of time before Ann Coulter's work came under scrutiny. Let's hope she addresses this in her column next week.
(The Palestinian terrorist regime is the crisis and Israel's fist is the answer.)