but I would rather be protected from people like Hitler, Stalin, Obama, Mao etc.
Ohhh come on, why are so many people so unrealistic these days? You're actually going to compare Obama to Stalin? Yeah, they're splitting images of each other, most definitely! There's now forced labor camps throughout the US, people dieing left and right from hunger, farmers being forced off their land by military, people being sentenced to 15 years prison after a 10 minute trial, underground prisons and torture chambers built throughout the cities where citizens who speak against the government are kidnapped and sent to, etc. That's exactly what's happening in the US right now.