The Egyptian government may have made a mistake in releasing these people prematurely. You won't reform major terrorist groups. They will just operate at a smaller level that the government can't monitor effectively.

It seems that whenever the authorities are able to uncover some of the individuals that may have played a role in the attacks, they hit a brick wall. They still don't know the mystery men who provided the financing or logistics [for these attacks]. These men set up the plot and then disappear.