How do efforts to keep guns out of the hands of whoever you think is crazy keep people safe? As for fertilizer bombs, that is the least of the concerns of government. Did you know that hydrogen peroxide is a highly volatile explosive, and that it is can be used as rocket fuel? That you can make poison gas with common household chemicals that are available in any grocery store? It is not the job of the government to protect you from random acts of violence because doing so would require the government to monitor everything you do.