KARACHI: Mr. Najmuddin A. Shaikh, Former Ambassador to the US, Iran, Canada and former Foreign Secretary of Pakistan, and Lt Gen (Rtd.) Moinuddin Haider among others discussed Pakistan’s security challenges at a seminar on “Security Challenges to Pakistan”. It was organized recently by the Global and Regional Studies Centre (GRSC), Institute of Business Management (IoBM), according to IoBM Public Affairs Section. Present …