The memorial service in Washington for journalist Saleem Shahzad--who was killed around May 29--was held at the National Press Club this past Monday. Anwar Iqbal, dean of the Pakistani press corps in Washington, led the ceremony. Ambassador to the U.S. Hussain Haqqani spoke eloquently about the degree of loss brought by Shahzad's brutal killing. While many of the speakers called for an investigation into Shahzad's death, I had a different train of thought. I focused on an idea that had come up while I was in Karachi this April and May. After all, I thought, too many special investigations have been commissioned and have never seen the light of day, and the same thing seems likely to happen in Shahzad's case. But what if we could have prevented his death in the first place?