A rocket attack in Iraq killed a US civilian contractor, raising fears on Saturday that violence could escalate in the protest-hit country already engulfed in its worst political crisis in decades. Washington recently promised “a decisive US response” to a growing number of unclaimed attacks on its interests in Iraq, which it blames on pro-Iran factions. US-Iran tensions have soared since Washington pulled out of a landmark nuclear agreement with Tehran last year and imposed crippling sanctions.
