To Live & Die in Karachi

Madrasah students sway back and forth as they memorize the Koran.
JOHN STANMEYER / VII

Madrasah students sway back and forth as they memorize the Koran. There are as many as 800 of these religious schools in the city. Many, authorities say, are conduits for jihad and "nurseries for terrorism."

Get the Latest Photos from Time.com
Get TIME photos and pictures of the week delivered directly to your inbox.