For prosecutors, who were working with outdated legislation, proving membership of a terrorist group was often the only way to secure convictions of individuals planning violence. For a number of governments around the world – Uzbekistan, Pakistan, Egypt – linking attacks on their soil to “al-Qaida” became a way to shift attention away from their own brutality, corruption and incompetence, and to gain diplomatic or material benefits from Washington. For some officials in Washington, linking terrorist attacks to “state-sponsored” groups became a convenient way to justify policies, such as the continuing isolation of Iran, or military interventions such as the invasion of Iraq. For many analysts and policymakers, who were heavily influenced by the conventional wisdom on terrorism inherited from the cold war, thinking in terms of hierarchical groups and state sponsors was comfortably familiar.