She is very brave, and in this interview she said that she actually told President Obama during an exclusive meeting with him that in the end drone strikes actually lead to more terrorism.
Drone strikes are somewhat effective in killing terrorist leaders, but they often end up killing civilians as well, creating more anger, and a thirst for vengeance that leads to more people joining the fight on the side of the Taliban and other groups who may not have joined before, and may not necessarily agree with their ideology.

They don't want someone like her campaigning for more schools, more education, more opportunities for all (but especially girls and women, who are kept down more than everyone else in a culture like that). Fundamentalism needs ignorance to thrive, and it starts to really bleed out member when they are exposed to the outside world, and real education and information.