Did Shirley sherrod know that Glenn Beck did not air her story on the 19th or the 20th before she blamed him?

She publicly accused Glen Beck for a smear and he didn't.He actually had her back and spoke in her behalf on the 21st well after her accusation of him smearing her.The folks on the left still accuse him of this.I guess its ok for her and those liberals to lie about what Glen said or didn't say,because even if she did not know if he did or not yet accuses him of it,that is just as much a lie as Obama health care promises.so are all the liberals in politics liars?