TWO more airports have joined Abu Dhabi in having a laptop ban lifted. On July 5th passengers flying from Dubai or Istanbul to America were told that they will once more be allowed to take large electronic devices into plane cabins, rather than having to stow them in the hold, which they have been required to do since March. That will come as a relief to passengers of Emirates, Turkish Airlines and Etihad who have been forced to fly without their laptops and tablets. It follows a change of heart by John Kelly, America’s homeland security secretary. On July 28th, Mr Kelly’s department decided again to trust foreign airports with screening laptops for hidden explosives, so long as they upgraded security. Other airports affected by the ban are expected to pass muster in the coming days and weeks.