CAIRO (Reuters) - Negotiations between Egypt and the International Monetary Fund have not failed, the president's office said on Wednesday after an IMF delegation left Cairo without agreement on a $4.8 billion loan needed to ease a severe economic crisis. "Talk that the IMF talks failed is inaccurate as this delegation was technical and was not authorised to sign a deal with the Egyptian government and there were many positive results from the talks especially from the Egyptian government side," presidential spokesman Omar Amer told reporters. ...