The world's energy lifeline is still vulnerable
For a few weeks, energy markets had begun to believe the worst was over. Oil prices had retreated, ships were gradually returning to the Strait of Hormuz and last month's US-Iran framework agreement had raised hopes that one of the world's busiest energy corridors could move closer to normal. Tuesday's attack on a Qatari liquefied natural gas (LNG) carrier may have challenged that assumption.Iran's Revolutionary Guards fired at least two missiles at commercial ships passing through the Strait o…