Ann Coulter cancels speech at Berkeley amid safety dispute

By Lisa FernandezBERKELEY, Calif. (Reuters) - Conservative commentator Ann Coulter said she had scrapped plans to speak on Thursday at the University of California at Berkeley in defiance of campus officials, who had barred her original engagement this week out of concerns about inciting violent protests.Coulter, one America's best-known and most polarizing pundits on the political right, cast blame on conservative student organizers who withdrew their invitation following their dispute with uni