Who are the three that BB refers to and what has the PPP govt done about them?

[ The following comment opted from YouToube — In a recent interview with David Frost, Benazir Bhutto was asked about the previous attempt to assassinate her in October. Her response is well worth a second listen in the wake of her death. It seems that Ms. Bhutto suspected the involvement of Pakistan’s security services and told President Musharraf as much. After she received a letter from Mr. Musharraf warning her of the various terrorist organizations who were planning to target her for assassination, she wrote back stating her view that “…while these [terrorist] groups may be used, I thought it was more important to go after the people who supported them, who organized them, who could possibly be the financiers… for those groups.” Perhaps her most interesting remark was about one security agent she suspected of being involved in the bombings who, she said, “had dealings with Omar Sheikh … – MarzuqVision — December 28, 2007]

Source – http://www.youtube.com/watch?v=f1uLdmct8_E&NR=1