Pakistan's financial hub, Karachi, has suffered endemic political, ethnic and criminal violence over the last two decades. In the latest spate of political violence just last week, more than 80 people were killed in a series of apparent tit-for-tat killings. One of the many groups accused of being involved is known as the ï¿½People's Peace Committee'. Strangely enough, it is also engaged in a wide range of social welfare activities in the neighborhood it controls. Fahad Desmukh reports.