Vol. 120 No. 8 This Article provides a broad-lens, synoptic perspective on war-on-terrorism questions arising within the habeas corpus jurisdiction of the federal courts. Analytically, it develops a clear framework for sorting out the tangle of jurisdictional, substantive, procedural, and scope-of-review issues that habeas cases often present. Methodologically, it champions a common law—like approach to habeas adjudication under which courts must exercise responsible judgment in adapting both statutory and constitutional language to unforeseen exigencies.