The decision by Washington to block Iraq from importing gas from Turkmenistan via a swap deal with Iran may prove problematic for Baghdad, but it could reignite interest in building a trans-Caspian pipeline that enables Turkmen gas to flow to Europe. Washington’s decision was part of an effort to ramp up sanctions pressure on Tehran and was not specifically intended to punish either Baghdad or Ashgabat, although both will be impacted. Iraq is suffering from crippling power shortages, and importing gas from Turkmenistan…