A seventeen year old living in England was arrested for “collection or possession of information useful in the preparation of an act of terrorism” because he had on his person The Anarchists Cookbook. You’ll note from this link that this book is freely available on Amazon (eligible for FREE SUPER SAVER SHIPPING, no less) and, I could say with some authority at most public and academic libraries. Also available on Amazon? Boobytraps Fm5-31 and Improvised Munitions Handbook, both published by the Department of Defense.