michael okwu has a report. when the drone struck last october she was helping her grandmother pick okra in afghanistan. >> in the year since the drone attack killed his mother they have heard nothing about why they were targeted. amnesty international investigated the killing. one of dozens of people killed in suspected u.s. drone attacks. >> i have met with the family and spoke with them at length about what happened. there is simply no justification for this killing. and worst of all the family has been given no explanation for why she was killed and why theretherewas drones overhead. pakistan has taken the bulk of u.s. drone attacks. attacks on yemen have picked up since 2011. human rights watch focused their report there. >> after 90 interviews they found 57 civilians had been killed. they focused on attacks on pakistan's north region. pacpakistan forbid traveling to the area. >> the u.s. secrecy impeded their research as will. the most challenging situation we had to face was the complete ceic secrecy of t