Interesting popular history of American secret aircraft programs. Chapters on the the XP-59, U-2, SR-71/A-12, F-117A, American-operated MiGs and, of course, several drone programs. Also, a highly speculative chapter on the Aurora hypersonic aircraft program. Marred by a heavily biased concluding chapter in which the author bemoans the post-Cold War reduction in defense spending and attacks anyone and everyone who might criticize black budget programs.