The world will be watching when the leaders of the United States and North Korea meet in Singapore on June 12. People are wondering whether U.S. President Donald Trump and North Korean leader Kim Jong Un can reach a nuclear agreement. Some experts have attempted to estimate the amount of time and money needed to take apart North Korea’s nuclear weapons program. They estimate that the disarmament process could last up to 10 years and cost $20 billion. Trump has said he expects a “very positive result” from the Singapore summit. He said that the talks represent the beginning of a process that will take time. Arms experts are trying to imagine what that process will look like.