Here's how Trump's nuclear button actually works...

There's no physical button, but there is a “football“ and “biscuit“. Read more about Trump's taunting tweet on here: Subscribe to our channel! Just a week into 2018, Donald Trump tweeted a provocative message directed at the North Korean regime's leader, Kim Jong Un. His message cited a “nuclear button“, and claimed that his was much larger than Kim's. But how does the U.S. protocol for launching nuclear warheads actually work? It's a process that's designed to be fast - there are only a few steps. But it's still more complicated than a simple button. is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out to get up to speed on everything from Kurdistan to the Kim Kardashian app. Check out our full video catalog: Follow Vox on Twitte