A volatile rivalry between two Kurdish factions, which burst into deadly fighting two weeks ago in Sinjar, continues to escalate with protests and provocative troop movements.Forces aligned with the Kurdistan Democratic Party (KDP) of Massoud Barzani, the acting president of the Kurdistan Regional Government (KRG), have deployed to several areas in Erbil and Dohuk provinces, provoking demonstrations and creating friction with local residents.The deployments appear to be a response to the…