Where does the United States stack up in the list of "the world's most dangerous countries?" We find out from someone who studies global gun violence, and can put the levels of such violence in the United States in perspective. One UNC professor also discusses with us what role social media plays, if any, in propagating and promoting gun violence. Later, we bring you a story on refugees resettling in Burlington, Vermont, and hear from business owners who are increasingly relying on these new arrivals to fill worker shortages. Plus, we take a look at the 50th anniversary of the Immigration Act, which transformed the US.