Investigators said the deaths of more than 50 migrants found inside a truck in Texas marks one of the deadliest instances of human smuggling in U.S. history. WATCH FULL EPISODES OF WORLD NEWS TONIGHT: https://abc.com/shows/world-news-tonight WATCH WORLD NEWS TONIGHT ON HULU: https://bit.ly/3iQLwPp #worldnewstonight #migrantdeaths #texas #deathtoll