The United States is a relatively safe country. It has a robust security system, especially since it is a prime target among terrorists. It also invests a lot on its military, costing the taxpayers billions of dollars each year. Despite that fact, there are still cities in the country that you will feel totally unsafe. Considering the crime rates and other factors, you might just want to avoid visiting these 7 worst cities in America. The good thing is that the government has tried to ease the situation in these cities by heightening security and reforming crime related laws.