DENVER -- A Centennial-based organization has canceled an up coming charity event featuring Sarah Palin, citing safety concerns. The Sharon K Pacheco Foundation announced Saturday that the 2011 Patriots & Warriors Charity Gala scheduled for May 2 would not be held. "Due to an onslaught of personal attacks against Governor Palin and others associated with her appearance, it is with deep sadness and disappointment that, in the best interest of all, we cancel the event for safety concerns," said the Foundation's Director.