from the sorry-we're-all-out dept.
jamie writes "Operation Dark Heart, a book about the adventures and frustrations of an Army officer who served in Afghanistan, has ruffled some feathers at the Pentagon. From the article: 'The Defense Department is attempting to buy the entire first printing — 10,000 copies — of a memoir by a controversial former Defense Intelligence Agency officer so that the book can be destroyed, according to military and other sources."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals