France voiced unease Friday with a Pakistani court decision to lift the house arrest order against nuclear scientist Abdul Qadeer Khan and said it hoped his days of sharing atomic secrets were over. "We are obviously a little concerned by this decision," said foreign ministry spokesman Eric Chevallier. "We hope that the proliferation activities of Mr Khan and his network in the past are absolutely over," he said. "We know what role Mr Khan and his network played in the spread worldwide of nuclear technology for military use. We hope that this release will not lead to the pursuit of these activities which are illegal, dangerous and very worrying for international security."