Debat described Rehman as "extremely dangerous because of his role as the crucial interface between the brains of al Qaeda and its muscle, which is mainly composed these days of Pakistani militants." Pakistani officials suspected Rehman of being connected to the 2 March 2006 Karachi consulate attacks and said that he had helped train Pakistani militants at al Qaeda training camps in the late 1990s.
Debat viewed Rehman as a significant threat due to his position as the link between al Qaeda's leadership and its Pakistani militant wing, while Pakistani officials suspected him of involvement in the March 2, 2006 Karachi consulate attacks and claimed he had trained Pakistani militants at al Qaeda camps during the late 1990s.