As our social structures grew more complex, we developed more elaborate ways to identify members of our tribes such as manners of speech, clothing, body piercings, ID cards and so forth.
Since the factional warfare reignited on Monday, a multitude of Palestinians have been killed, many in particularly gruesome mannerssuch as the execution of wounded fighters in hospital beds, various kneecappings, and the tossing of a member of the Presidential Guard from the top of an eighteen story building.