Pakistan has about 17,000 religious schools, or madrassas, which provide children with free religious education. <br />This means they have to memorise the Koran from as young as five-years-old. <br />There are nearly 2m students enrolled in Paksitan's madrassas. <br />But a 9/11 commission report in the US dubbed them as as "incubators for violent extremism". <br />BBC Urdu's Asif Farooq explains the increase in their popularity. <br />For More videos and Updates keep visit: http://www.crackstyday.com
