When creating a definition that effectively conveys information, we can't eliminate things that condemn ourselves.  I realize that self-incrimination goes against human nature, but we can resolve the discrepancy by taking incrimination out of our definitions.  Terrorism, for instance, doesn't have to be pejorative.  We can talk about it simply as a method of war or influence.  If terrorism isn't evil, then it doesn't matter if Israel includes terrorism as one of its tactics.
You may think that stripping any implication of terrorism from Israel is good for the Jewish people, but let's look at the big picture.  In the information age, we can no longer keep people from researching historical data.  Trying to subvert this information only serves to show the bias of those attempts.  With unrestricted global communication, manipulation of mass communication is passé.  I believe I can make a case for it never having been a good thing, but that is beside the point.  Regardless of whether it was ever good to suppress and change history, one thing is certain: it is increasingly harder to do so.