Two inexperienced leaders and the prospect of nuclear war

President Trump shook much of the world yesterday with his comment on future threats from North Korea. "They will be met with fire and fury like the world has never seen." North Korea's Kim Jung Un responded by saying he's reviewing plans to target America's airbase on the island territory of Guam. Today, some White House advisors are urging calm, but there's renewed concern about what might happen in one of the world's most dangerous regions. What more needs to be done to avoid catastrophic miscalculation by either side?