NBC continues to pull the rug out from under great television.  By doing this, they have continually lost faith from viewers who are hesitant to try their new programs because they know NBC will cancel them anyway.  The latest casualty is Allegiance, one of the best written shows on television this season with outstanding acting.  Please NBC, stop this trend and bring back this gem of a show with proper promotion.  All 13 episodes have been shot for season one.  Give it a full season to air, promote, and build momentum.