That is completely wrong. If you don't think being a policeman is dangerous you should do it. Setting aside which job is the "most" dangerous, I can't think of any occupation in which you might get shot for simply wearing the uniform, other than the military. Cops are often faced with situations that may lead to their death -- traffic stops, domestic violence cases, drug arrest, etc. The "armed thugs" are the ones killing policemen and their fellow citizens.