<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
What are the most powerful weapons that it's legal to own?
<|assistant|>
In the US, the Bureau of Alcohol, Tobacco, and Firearms classifies legal weapons depending on their destructiveness and potential to cause death or harm. Generally, weapons that are powerful enough to cause destruction without direct contact are regulated by the National Firearms Act and must be registered with the BATF. Examples of such weapons include automatic firearms, grenade launchers, and some types of rocket launchers. Handguns are typically the most destructive weapons that are legal for citizens to own and possess.