Do a cost-benefit analysis then. Cost: several spectacularly costly (lives and dollars) wars. Benefit: some profitable industrial espionage? I'll let someone else fill in the blanks for the benefits, but I don't think anything really compares to the cost of getting us into countless wars and 'low intensity conflicts' around the world, all the way back to the invasion of Cuba and even earlier. So many wars, each time started by lying to the american public.