our chief international correspondent joining us. boko haram has been especially ruthless towards these children. ways the greatest fear in these girls aren't rescued quickly? >> a huge fear, and the nigerian government has put a huge military detail on trying to find them as they continue to be missing, and what happens according to a lot the experts who have been tracking these kinds of abductions is in nigeria particularly these girls are often then sold into the sex slave industry or some kids are trafficked and become child soldiers. this epidemic, this crisis of child abductions, is battering nigeria and has been doing so since at least 2010, and boko haram is becoming even more active. at the beginning -- since the beginning of this year, something like 100 -- 1,500 people have been killed by boko