“There are no strings on me.” That chilling line got us so excited for Avengers: Age of Ultron, and it came from the big bad bot himself, Ultron. But why, as mainstream audiences, do we love these ...

Yukabeth Kidenda, chief executive of Teach for Kenya, a non-profit group that trains bright young graduates to teach in low-income schools, has seen her fair share of controlling philanthropists. One ...