In a setback to advancing fuel-cell vehicle (FCV) technology, Toyota Motor on Tuesday said it would recall all six of its hydrogen-powered vehicles after it found a fuel tank leak in one of the cars, Reuters reported. According to the news agency, the car maker had begun leasing the million-dollar-plus cars to four Japanese government ministries and two California university campuses last December, becoming one of the world's first car makers, along with Honda, to market the environmentally friendly vehicles.