More than 100 Christian families displaced . Christians reportedly threatened by killings and attacks by Muslim militants . Extremists ordering them to convert to Islam , officials say . Three Christians have been slain in the past two weeks in Baghdad .
More than 1,400 Christian families displaced . Families reportedly frightened by killings and threats by Muslim extremists . Extremists ordering them to convert to Islam , officials say . Fourteen Christians have been slain in the past two weeks in Mosul .