A lack of "big thinking" by politicians has stifled a scheme to distribute laptops to children in the developing world, a spokesman has said.
Walter Bender of One Laptop per Child (OLPC) said politicians were unwilling to commit because "change equals risk".
But, he said, there needed to be a "dramatic change" because education in many countries was "failing" children.
In an interview with the BBC, Nigeria's education minister questioned the need for laptops in poorly equipped schools.
Read more