In his latest speech, John Kerry talked about the future of our world which is changing rapidly. According to him, our world will be a borderless one. He also indirectly addressed the topic of Donald Trump during his Friday commencement speech to Northeastern University graduates. "Many of you were in elementary school when you learned the toughest lesson of all on 9/11," he said. "There are no walls big enough to stop people from anywhere, tens of thousands of miles away, who are determined to take their own lives while they target others." "So I think that everything that we've lived and learn tells us that we will never come out on top if we accept advice from sound-bite salesmen and carnival barkers who pretend the most powerful country on Earth can remain great by looking inward," Kerry added. "And hiding behind walls at a time that technology has made that impossible to do and unwise to even attempt." Kerry didn't mention Trump by name, but Trump has repeatedly called for a wall