In Karachi, the political and ethnic violence that’s killed hundreds of people since July

In Pakistan’s largest city and commercial capital, Karachi, the surge in violence that began in July and has killed many hundreds of people, continues. The Daily Times reports that five people were killed yesterday in what it described as targeted killings. Much of the violence involves gangs from rival political and ethnic groups.  For more, we reached Raza Rumi by cell phone. He’s editor of Pak Tea House, and based in Lahore. Danny Wood started by asking Raza to explain the issues, including the ethnic divisions, behind the violence.