Pakistan: Safety is returning to Karachi

Security operation is transforming city of 20 million people once known for violent crime.

    Pakistan's most populous city is enjoying a new lease of life.

    Ten years ago, Karachi was known for its violent crime.

    There were regular targeted killings and extortions, and many businesses were forced to shut down.

    Then a major security operation was launched to tackle the problem.

    Al Jazeera's Kamal Hyder reports from Karachi.


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