PRI's The World Published by PRI's The World Attackers kill dozens of sleeping cadets at Pakistani police academy in Quetta Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/676726/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend Who's to blame? Two militant groups have taken credit. Pakistan's army blames a third group. And some point fingers at the army itself, accusing security forces of fostering the very extremist groups now attacking the country.