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This is what Abraham Lincoln had to say about liars:
It is an established maxim and moral that he who makes an assertion without knowing whether it is true or false is guilty of falsehood, and the accidental truth of the assertion does not justify or excuse him.
Abraham Lincoln, chiding the editor of a Springfield, Illinois, newspaper, quoted from Antony Flew, How to Think Straight, p. 17 (h/t Positive Atheism)
As a journalist, Liasson not only has the resources available to verify her assertions, it's her job to do so. To assert something as true that is so easily verified as false is indeed a lie.